TY  - JOUR
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Pezo, Lato
AU  - Stanković, S.B.
AU  - Patarić, Aleksandra
AU  - Janjušević, Zoran
AU  - Lončar, B.Lj.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/512
AB  - Hydrometallurgical processing of the copper concentrates is a promising alternative to the conventional pyrometallurgical production of copper due to significantly lower environmental impact, capital and operational costs. Development of the hydrometallurgical process for copper recovery from mineral concentrate requires extensive work in testing and optimization of operational parameters from laboratory to semi-industrial scale. Mathematical modelling of the copper leaching process can save human labour and time. Leaching of copper from chalcopyrite concentrate using sulphuric acid and sodium nitrate as an oxidant was tested, and the influence of temperature, particle size, stirring speed and concentrations of sulphuric acid and sodium nitrate were evaluated. Obtained results showed that increasing temperature and concentrations of sulphuric acid and sodium nitrate increase the leaching degree of copper, while increasing particle size and stirring speed reduce copper extraction. In this paper, second-order polynomial models (SOP) were applied to experimental data. Presented results show that mathematical models fit experimental data. The conclusion is that SOP models are a promising tool to be used for modelling leaching processes of metals.
PB  - Bulgarian Academy of Sciences
T2  - Bulgarian Chemical Communications
T1  - Copper leaching from chalcopyrite concentrate by sodium nitrate in sulphuric acid solution – chemometric approach
EP  - 463
IS  - 3
SP  - 457
VL  - 51
DO  - 10.34049/bcc.51.3.5119
UR  - conv_1022
ER  - 

@article{
author = "Sokić, Miroslav and Marković, Branislav and Pezo, Lato and Stanković, S.B. and Patarić, Aleksandra and Janjušević, Zoran and Lončar, B.Lj.",
year = "2019",
abstract = "Hydrometallurgical processing of the copper concentrates is a promising alternative to the conventional pyrometallurgical production of copper due to significantly lower environmental impact, capital and operational costs. Development of the hydrometallurgical process for copper recovery from mineral concentrate requires extensive work in testing and optimization of operational parameters from laboratory to semi-industrial scale. Mathematical modelling of the copper leaching process can save human labour and time. Leaching of copper from chalcopyrite concentrate using sulphuric acid and sodium nitrate as an oxidant was tested, and the influence of temperature, particle size, stirring speed and concentrations of sulphuric acid and sodium nitrate were evaluated. Obtained results showed that increasing temperature and concentrations of sulphuric acid and sodium nitrate increase the leaching degree of copper, while increasing particle size and stirring speed reduce copper extraction. In this paper, second-order polynomial models (SOP) were applied to experimental data. Presented results show that mathematical models fit experimental data. The conclusion is that SOP models are a promising tool to be used for modelling leaching processes of metals.",
publisher = "Bulgarian Academy of Sciences",
journal = "Bulgarian Chemical Communications",
title = "Copper leaching from chalcopyrite concentrate by sodium nitrate in sulphuric acid solution – chemometric approach",
pages = "463-457",
number = "3",
volume = "51",
doi = "10.34049/bcc.51.3.5119",
url = "conv_1022"
}

Sokić, M., Marković, B., Pezo, L., Stanković, S.B., Patarić, A., Janjušević, Z.,& Lončar, B.Lj.. (2019). Copper leaching from chalcopyrite concentrate by sodium nitrate in sulphuric acid solution – chemometric approach. in Bulgarian Chemical Communications
Bulgarian Academy of Sciences., 51(3), 457-463.
https://doi.org/10.34049/bcc.51.3.5119
conv_1022

Sokić M, Marković B, Pezo L, Stanković S, Patarić A, Janjušević Z, Lončar B. Copper leaching from chalcopyrite concentrate by sodium nitrate in sulphuric acid solution – chemometric approach. in Bulgarian Chemical Communications. 2019;51(3):457-463.
doi:10.34049/bcc.51.3.5119
conv_1022 .

Sokić, Miroslav, Marković, Branislav, Pezo, Lato, Stanković, S.B., Patarić, Aleksandra, Janjušević, Zoran, Lončar, B.Lj., "Copper leaching from chalcopyrite concentrate by sodium nitrate in sulphuric acid solution – chemometric approach" in Bulgarian Chemical Communications, 51, no. 3 (2019):457-463,
https://doi.org/10.34049/bcc.51.3.5119 .,
conv_1022 .

TY  - JOUR
AU  - Janjušević, Zoran
AU  - Matković, Vladislav
AU  - Bugarčić, Mladen
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Manojlović, Vaso
AU  - Patarić, Aleksandra
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/486
AB  - U istraživačkom radu opisan je komercializovan reciklažni proces prerade otpadnog rastvora iz postrojenja za proizvodnju sijaličnih vlakana od volframa radi izdvajanja molibden (VI)-oksida i njegovom daljem iskorišćavanju kao legirajućeg agensa sivog liva. U prvom delu izvršena je neutralizacija utrošene kiseline, koja u sebi sadrži izvesne količine molibdena, uz pomoć rastvora amonijaka, a potom kristalizacija i filtracija amonijum-molibdata, njegovo sušenje i prženje u cilju dobijanja praha molibdentrioksida tehničke čistoće (maseni udeo molibdena 59,2 mas%). U drugom delu izvršeno je legiranje sivog liva uz pomoć MoO3 u indukcionoj peći. Finalni proizvod je legura železa sa povećanom tvrdoćom uz postignut visok stepen usvajanja molibdena u leguri (čak do 86%).
AB  - The present work reports the commercialization of a recycling process of spent acid from filament tungsten wire plant to recover molybdenum (VI)-oxide and further utilizing this product for alloying cast iron. First part of the process consists of ammonia gas neutralization of spent acid containing molybdenum, crystallization and filtration of ammonium molybdate, drying and roasting to produce a commercial grade molybdic-trioxide powder (molybdenum mass fraction 59.2 mas%). Second part of the process consists of grey cast alloying with MoO3 in inducing furnace. Final product was hardened iron alloy with high yield of molybdenum recovery (up to 86 %).
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Valorizacija molibdena iz otpadnog molibdenskog rastvora za legiranje sivog liva
T1  - Molybdenum recovery as alloying agent from waste molybdenum solution
EP  - 107
IS  - 1
SP  - 100
VL  - 59
DO  - 10.5937/ZasMat1801102J
UR  - conv_155
ER  - 

@article{
author = "Janjušević, Zoran and Matković, Vladislav and Bugarčić, Mladen and Sokić, Miroslav and Marković, Branislav and Manojlović, Vaso and Patarić, Aleksandra",
year = "2018",
abstract = "U istraživačkom radu opisan je komercializovan reciklažni proces prerade otpadnog rastvora iz postrojenja za proizvodnju sijaličnih vlakana od volframa radi izdvajanja molibden (VI)-oksida i njegovom daljem iskorišćavanju kao legirajućeg agensa sivog liva. U prvom delu izvršena je neutralizacija utrošene kiseline, koja u sebi sadrži izvesne količine molibdena, uz pomoć rastvora amonijaka, a potom kristalizacija i filtracija amonijum-molibdata, njegovo sušenje i prženje u cilju dobijanja praha molibdentrioksida tehničke čistoće (maseni udeo molibdena 59,2 mas%). U drugom delu izvršeno je legiranje sivog liva uz pomoć MoO3 u indukcionoj peći. Finalni proizvod je legura železa sa povećanom tvrdoćom uz postignut visok stepen usvajanja molibdena u leguri (čak do 86%)., The present work reports the commercialization of a recycling process of spent acid from filament tungsten wire plant to recover molybdenum (VI)-oxide and further utilizing this product for alloying cast iron. First part of the process consists of ammonia gas neutralization of spent acid containing molybdenum, crystallization and filtration of ammonium molybdate, drying and roasting to produce a commercial grade molybdic-trioxide powder (molybdenum mass fraction 59.2 mas%). Second part of the process consists of grey cast alloying with MoO3 in inducing furnace. Final product was hardened iron alloy with high yield of molybdenum recovery (up to 86 %).",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Valorizacija molibdena iz otpadnog molibdenskog rastvora za legiranje sivog liva, Molybdenum recovery as alloying agent from waste molybdenum solution",
pages = "107-100",
number = "1",
volume = "59",
doi = "10.5937/ZasMat1801102J",
url = "conv_155"
}

Janjušević, Z., Matković, V., Bugarčić, M., Sokić, M., Marković, B., Manojlović, V.,& Patarić, A.. (2018). Valorizacija molibdena iz otpadnog molibdenskog rastvora za legiranje sivog liva. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 59(1), 100-107.
https://doi.org/10.5937/ZasMat1801102J
conv_155

Janjušević Z, Matković V, Bugarčić M, Sokić M, Marković B, Manojlović V, Patarić A. Valorizacija molibdena iz otpadnog molibdenskog rastvora za legiranje sivog liva. in Zaštita materijala. 2018;59(1):100-107.
doi:10.5937/ZasMat1801102J
conv_155 .

Janjušević, Zoran, Matković, Vladislav, Bugarčić, Mladen, Sokić, Miroslav, Marković, Branislav, Manojlović, Vaso, Patarić, Aleksandra, "Valorizacija molibdena iz otpadnog molibdenskog rastvora za legiranje sivog liva" in Zaštita materijala, 59, no. 1 (2018):100-107,
https://doi.org/10.5937/ZasMat1801102J .,
conv_155 .

TY  - JOUR
AU  - Karastojković, Zoran
AU  - Polić, Suzana R.
AU  - Čubrilović, Slobodan B.
AU  - Jovanović, Danijela N.
AU  - Janjušević, Zoran
AU  - Patarić, Aleksandra
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/483
AB  - Izrada jednog umetničkog dela obično uključuje brojne različite tehnologije. To podrazumeva da je za razumevanje eventualno prisutnih nepravilnosti potrebno znati puno tehničkih detalja. Tehnologija lemljenja je jedna od njih, ispitivanje integriteta, takođe. Tehnologija lemljenja, uopšte, se razvijala na empirijski način, uglavnom pokušajima i greškama. Osnovnu teškoću čini realna situacija, koja je veoma složena, usled prisustva velikog broja uticajnih veličina, neke od njih se ne mogu lako prepoznati. Veliki problem je pojava pukotina u periodu posle čišćenja, tj. po završetku lemljenja, a to znači nekada posle više godina ili decenija. Dobar zalemljeni spoj mora biti valjano fizički i hemijski spojen. Jedna od primenljivih metoda ispitivanja je radiografsko ispitivanje, kada debljina ispitivanih delova obično ne predstavlja problem. Ovde izvedena radiografska ispitivanja su nagovestila prisustvo nekih indikacija samo na listovima. Penetranstsko ispitivanje je sledeći korak za ispitivanje površine. Registrovanje indikacija i njihovo lociranje su neophodni koraci u svakom daljem pristupu u cilju uklanjanja takvih diskontinuiteta. Izbor metode reparacije uvek je poseban problem, dakako u celoj tehnici, a posebno na osetljivim umetničkim predmetima. Svako delovanje u reparaciji ili restauraciji može dovesti do manje ili više vidljivih tragova. Neodgovarajuća delovanja mogu dovesti do manje ili više vidljivih tragova. Ovde je pokazana jedna nepravilnost (pukotina) na zalemljenom listu, na jednoj umetničkoj stonoj lampi.
AB  - Making of an artistic piece usually includes a number of different technologies. It implies that for understanding of eventually present irregularities one should knows a lot of technical details. Brazing tehnology is one of them, inspection of integrity, also. Brazing technology generally has evolved on empirical manner, mainly by trial and error(s). The basic difficulty in this technology is that the real situation is highly complex due to the presence of large number of variables, some of them may not be easy to recognize. The great problem is the appearance of crack(s) in postcleaning periode, i.e after brazing is finished, it means over years or decades. A good braze joint must be both physically and chemically bounded. One of the available method for investigation is radiographic testing, when the thickness of testing components commonly does not represents a problem. Here provided radiographic testing has revealed the existence of some indications only at leaves. The indications usualy mean discontinuity in material homogenity. Penetrant testing is a next step for investigation of surface. Registration of indications and their locations are necessary steps in any further approach for removing such discontinuities. Choosing the repair method always is particular problem, however in entire technique, especially on sensitive artistic component(s). Every action in repairing or restauration may led to more or less visible traces. Unadequate actions may permanently change the appearance or usage of treated artefact. Here is shown one irregularity (crack) at one brazed leaf from an artistic desk lamp.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Korozione pukotine od zaostalog topitelja posle lemljenja tankih listova na jednoj umetničkoj stolnoj lampi
T1  - Corrodive cracks from flux residuals after brazing of thin leaves at an artistic desk lamp
EP  - 458
IS  - 3
SP  - 454
VL  - 59
DO  - 10.5937/zasmat1803454K
UR  - conv_157
ER  - 

@article{
author = "Karastojković, Zoran and Polić, Suzana R. and Čubrilović, Slobodan B. and Jovanović, Danijela N. and Janjušević, Zoran and Patarić, Aleksandra",
year = "2018",
abstract = "Izrada jednog umetničkog dela obično uključuje brojne različite tehnologije. To podrazumeva da je za razumevanje eventualno prisutnih nepravilnosti potrebno znati puno tehničkih detalja. Tehnologija lemljenja je jedna od njih, ispitivanje integriteta, takođe. Tehnologija lemljenja, uopšte, se razvijala na empirijski način, uglavnom pokušajima i greškama. Osnovnu teškoću čini realna situacija, koja je veoma složena, usled prisustva velikog broja uticajnih veličina, neke od njih se ne mogu lako prepoznati. Veliki problem je pojava pukotina u periodu posle čišćenja, tj. po završetku lemljenja, a to znači nekada posle više godina ili decenija. Dobar zalemljeni spoj mora biti valjano fizički i hemijski spojen. Jedna od primenljivih metoda ispitivanja je radiografsko ispitivanje, kada debljina ispitivanih delova obično ne predstavlja problem. Ovde izvedena radiografska ispitivanja su nagovestila prisustvo nekih indikacija samo na listovima. Penetranstsko ispitivanje je sledeći korak za ispitivanje površine. Registrovanje indikacija i njihovo lociranje su neophodni koraci u svakom daljem pristupu u cilju uklanjanja takvih diskontinuiteta. Izbor metode reparacije uvek je poseban problem, dakako u celoj tehnici, a posebno na osetljivim umetničkim predmetima. Svako delovanje u reparaciji ili restauraciji može dovesti do manje ili više vidljivih tragova. Neodgovarajuća delovanja mogu dovesti do manje ili više vidljivih tragova. Ovde je pokazana jedna nepravilnost (pukotina) na zalemljenom listu, na jednoj umetničkoj stonoj lampi., Making of an artistic piece usually includes a number of different technologies. It implies that for understanding of eventually present irregularities one should knows a lot of technical details. Brazing tehnology is one of them, inspection of integrity, also. Brazing technology generally has evolved on empirical manner, mainly by trial and error(s). The basic difficulty in this technology is that the real situation is highly complex due to the presence of large number of variables, some of them may not be easy to recognize. The great problem is the appearance of crack(s) in postcleaning periode, i.e after brazing is finished, it means over years or decades. A good braze joint must be both physically and chemically bounded. One of the available method for investigation is radiographic testing, when the thickness of testing components commonly does not represents a problem. Here provided radiographic testing has revealed the existence of some indications only at leaves. The indications usualy mean discontinuity in material homogenity. Penetrant testing is a next step for investigation of surface. Registration of indications and their locations are necessary steps in any further approach for removing such discontinuities. Choosing the repair method always is particular problem, however in entire technique, especially on sensitive artistic component(s). Every action in repairing or restauration may led to more or less visible traces. Unadequate actions may permanently change the appearance or usage of treated artefact. Here is shown one irregularity (crack) at one brazed leaf from an artistic desk lamp.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Korozione pukotine od zaostalog topitelja posle lemljenja tankih listova na jednoj umetničkoj stolnoj lampi, Corrodive cracks from flux residuals after brazing of thin leaves at an artistic desk lamp",
pages = "458-454",
number = "3",
volume = "59",
doi = "10.5937/zasmat1803454K",
url = "conv_157"
}

Karastojković, Z., Polić, S. R., Čubrilović, S. B., Jovanović, D. N., Janjušević, Z.,& Patarić, A.. (2018). Korozione pukotine od zaostalog topitelja posle lemljenja tankih listova na jednoj umetničkoj stolnoj lampi. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 59(3), 454-458.
https://doi.org/10.5937/zasmat1803454K
conv_157

Karastojković Z, Polić SR, Čubrilović SB, Jovanović DN, Janjušević Z, Patarić A. Korozione pukotine od zaostalog topitelja posle lemljenja tankih listova na jednoj umetničkoj stolnoj lampi. in Zaštita materijala. 2018;59(3):454-458.
doi:10.5937/zasmat1803454K
conv_157 .

Karastojković, Zoran, Polić, Suzana R., Čubrilović, Slobodan B., Jovanović, Danijela N., Janjušević, Zoran, Patarić, Aleksandra, "Korozione pukotine od zaostalog topitelja posle lemljenja tankih listova na jednoj umetničkoj stolnoj lampi" in Zaštita materijala, 59, no. 3 (2018):454-458,
https://doi.org/10.5937/zasmat1803454K .,
conv_157 .

TY  - CONF
AU  - Marković, Branislav
AU  - Manasijević, Dragan
AU  - Sokić, Miroslav
AU  - Talijan, Nadežda
AU  - Štrbac, Nada
AU  - Manojlović, Vaso
AU  - Janjušević, Zoran
AU  - Bugarčić, Mladen
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/951
AB  - High toxicity of lead and damaging effects on the environment resulted in its prohibited
use in electronic materials (RoHS Directive from 1 July 2006 in the EU). Therefore, great
effort has been made on the development of new Pb-free soldering and brazing materials
[1-5]. The Bi–Cu–Ni ternary system belongs to the group of potential Cu-Ni-based
advanced lead-free solder materials for high temperature application [6-8]. The results of
phase equilibria investigation of the alloys selected in the Bi-Cu0.75Ni0.25 section from
bismuth corner with molar ratio Cu:Ni = 3:1, are presented in this paper. The investigations
were performed using DTA/DSC experimental methods, while thermodynamic calculation
was done according to the CALPHAD method using PANDAT software. The results of the
DTA/DSC heating measurements of the chosen samples in the Bi-Cu0.75Ni0.25 section,
including liquidus temperatures and other phase transition temperatures are presented in
graphical abstract. The phase diagram of the investigated Bi-CuNi section has been
calculated using PANDAT software and is presented in graphical abstract, together with
experimentally determined DTA/DSC points. It could be noticed that calculated phase
diagram is in good agreement with DTA/DSC experiments.
PB  - Kosovska Mitrovica : Fakultet Tehničkih nauka
C3  - Osmi simpozijum o termodinamici i faznim dijagramima
T1  - Thermal analysis application on the phase equilibria investigation of the alloys in the Bi- Cu0.75Ni0.25 section of the Bi-Cu-Ni system
EP  - 83
SP  - 81
ER  - 

@conference{
author = "Marković, Branislav and Manasijević, Dragan and Sokić, Miroslav and Talijan, Nadežda and Štrbac, Nada and Manojlović, Vaso and Janjušević, Zoran and Bugarčić, Mladen",
year = "2017",
abstract = "High toxicity of lead and damaging effects on the environment resulted in its prohibited
use in electronic materials (RoHS Directive from 1 July 2006 in the EU). Therefore, great
effort has been made on the development of new Pb-free soldering and brazing materials
[1-5]. The Bi–Cu–Ni ternary system belongs to the group of potential Cu-Ni-based
advanced lead-free solder materials for high temperature application [6-8]. The results of
phase equilibria investigation of the alloys selected in the Bi-Cu0.75Ni0.25 section from
bismuth corner with molar ratio Cu:Ni = 3:1, are presented in this paper. The investigations
were performed using DTA/DSC experimental methods, while thermodynamic calculation
was done according to the CALPHAD method using PANDAT software. The results of the
DTA/DSC heating measurements of the chosen samples in the Bi-Cu0.75Ni0.25 section,
including liquidus temperatures and other phase transition temperatures are presented in
graphical abstract. The phase diagram of the investigated Bi-CuNi section has been
calculated using PANDAT software and is presented in graphical abstract, together with
experimentally determined DTA/DSC points. It could be noticed that calculated phase
diagram is in good agreement with DTA/DSC experiments.",
publisher = "Kosovska Mitrovica : Fakultet Tehničkih nauka",
journal = "Osmi simpozijum o termodinamici i faznim dijagramima",
title = "Thermal analysis application on the phase equilibria investigation of the alloys in the Bi- Cu0.75Ni0.25 section of the Bi-Cu-Ni system",
pages = "83-81"
}

Marković, B., Manasijević, D., Sokić, M., Talijan, N., Štrbac, N., Manojlović, V., Janjušević, Z.,& Bugarčić, M.. (2017). Thermal analysis application on the phase equilibria investigation of the alloys in the Bi- Cu0.75Ni0.25 section of the Bi-Cu-Ni system. in Osmi simpozijum o termodinamici i faznim dijagramima
Kosovska Mitrovica : Fakultet Tehničkih nauka., 81-83.

Marković B, Manasijević D, Sokić M, Talijan N, Štrbac N, Manojlović V, Janjušević Z, Bugarčić M. Thermal analysis application on the phase equilibria investigation of the alloys in the Bi- Cu0.75Ni0.25 section of the Bi-Cu-Ni system. in Osmi simpozijum o termodinamici i faznim dijagramima. 2017;:81-83..

Marković, Branislav, Manasijević, Dragan, Sokić, Miroslav, Talijan, Nadežda, Štrbac, Nada, Manojlović, Vaso, Janjušević, Zoran, Bugarčić, Mladen, "Thermal analysis application on the phase equilibria investigation of the alloys in the Bi- Cu0.75Ni0.25 section of the Bi-Cu-Ni system" in Osmi simpozijum o termodinamici i faznim dijagramima (2017):81-83.

TY  - JOUR
AU  - Karastojković, Zoran
AU  - Perić, Radiša
AU  - Janjušević, Zoran
AU  - Stojanović, Jovica
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/444
AB  - Ispitivana legura zlata oznake 585, posmatrana u ovom radu je najčešće korišćena legura u juvelirskoj proizvodnji. Nedovoljno podataka, čak i danas, postoji oko proizvodnih postupaka legura zlata, uključujući režime topljenja, valjanja i termičke obrade. Strukture kompleksnih legura, kao što je ovde korišćena legura, su manje poznate ili izučavane. Principijelno, dijagram stanja sistema Au-Ag-Cu je poznat, kao (meta)stabilni dijagram. Ali posle relativno brzog hlađenja rastopa za vreme livenja obrazuju se polikristalna zrna, koja nisu nastala u ravnotežnim uslovima. Takav polikristalni materijal često se podvrgava valjanju radi dobijanja željenog oblika (polu)proizvoda. Ovi procesi, livenja i valjanja, pokazuju uticaj na konačnu strukturu, takođe i na osobine ovako tretirane legure. Strukturne promene kao i dobijene faze u procesima obrade legure zlata 585 još uvek nisu adekvatno ispitane. U ovom radu prikazani su neki rezultati izvršenih rendgenografskih ispitivanja nakon hladnog valjanja trake. Ispitivanja su izvršena na odlivcima dimenzija 4,5x50x50mm, koji su podvrgavani plastičnoj preradihladno valjanje do debljine trake od 1,5 mm, međufazno odžareni i završno izvaljani do debljine od 0,5mm, uz visinsku redukciju od 66,7%.
AB  - Here is investigated an golden alloy 585 as one of widely used gold alloy in jewelry production. Insufficient data, even in nowadays, exist about the production schedule of gold alloys, including melting, rolling and heat treatment regimes. The structures of complex alloys, such as used golden alloy, are less known and/or investigated. Principally, the constitutional diagram of Au-Ag-Cu system is known, as a (meta)stable equilibrium diagram. But, after relatively fast cooling from liquid state during casting will be obtained polycrystalline grains, different from equilibrium conditions. Such polycrystalline material frequently undergoes to rolling for obtaining a desired shape of (semi)product. Those processes, casting and rolling, will show the influence on the final structure to be obtained, also on properties of such treated alloy. The structural changes and obtained phases in metal working processes of 585 gold alloy still are not well examined, so here is provided an XRD examination after heavy reduction at cold rolling of a strip. The castings were in the flat form in dimension of 4,5x50x50mm, than cold rolled to 1,5mm, intermediate annealed and finally cold rolled to thickness of 0,5mm with height reduction of 66,7%.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Rendgenska difrakciona analiza hladno valjanog lima od juvelirske legure zlata 585
T1  - X-ray diffraction analysis of cold rolled strip from jewelry 585 gold alloy
EP  - 57
IS  - 1
SP  - 53
VL  - 72
DO  - 10.5937/tehnika1701053K
UR  - conv_22
ER  - 

@article{
author = "Karastojković, Zoran and Perić, Radiša and Janjušević, Zoran and Stojanović, Jovica",
year = "2017",
abstract = "Ispitivana legura zlata oznake 585, posmatrana u ovom radu je najčešće korišćena legura u juvelirskoj proizvodnji. Nedovoljno podataka, čak i danas, postoji oko proizvodnih postupaka legura zlata, uključujući režime topljenja, valjanja i termičke obrade. Strukture kompleksnih legura, kao što je ovde korišćena legura, su manje poznate ili izučavane. Principijelno, dijagram stanja sistema Au-Ag-Cu je poznat, kao (meta)stabilni dijagram. Ali posle relativno brzog hlađenja rastopa za vreme livenja obrazuju se polikristalna zrna, koja nisu nastala u ravnotežnim uslovima. Takav polikristalni materijal često se podvrgava valjanju radi dobijanja željenog oblika (polu)proizvoda. Ovi procesi, livenja i valjanja, pokazuju uticaj na konačnu strukturu, takođe i na osobine ovako tretirane legure. Strukturne promene kao i dobijene faze u procesima obrade legure zlata 585 još uvek nisu adekvatno ispitane. U ovom radu prikazani su neki rezultati izvršenih rendgenografskih ispitivanja nakon hladnog valjanja trake. Ispitivanja su izvršena na odlivcima dimenzija 4,5x50x50mm, koji su podvrgavani plastičnoj preradihladno valjanje do debljine trake od 1,5 mm, međufazno odžareni i završno izvaljani do debljine od 0,5mm, uz visinsku redukciju od 66,7%., Here is investigated an golden alloy 585 as one of widely used gold alloy in jewelry production. Insufficient data, even in nowadays, exist about the production schedule of gold alloys, including melting, rolling and heat treatment regimes. The structures of complex alloys, such as used golden alloy, are less known and/or investigated. Principally, the constitutional diagram of Au-Ag-Cu system is known, as a (meta)stable equilibrium diagram. But, after relatively fast cooling from liquid state during casting will be obtained polycrystalline grains, different from equilibrium conditions. Such polycrystalline material frequently undergoes to rolling for obtaining a desired shape of (semi)product. Those processes, casting and rolling, will show the influence on the final structure to be obtained, also on properties of such treated alloy. The structural changes and obtained phases in metal working processes of 585 gold alloy still are not well examined, so here is provided an XRD examination after heavy reduction at cold rolling of a strip. The castings were in the flat form in dimension of 4,5x50x50mm, than cold rolled to 1,5mm, intermediate annealed and finally cold rolled to thickness of 0,5mm with height reduction of 66,7%.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Rendgenska difrakciona analiza hladno valjanog lima od juvelirske legure zlata 585, X-ray diffraction analysis of cold rolled strip from jewelry 585 gold alloy",
pages = "57-53",
number = "1",
volume = "72",
doi = "10.5937/tehnika1701053K",
url = "conv_22"
}

Karastojković, Z., Perić, R., Janjušević, Z.,& Stojanović, J.. (2017). Rendgenska difrakciona analiza hladno valjanog lima od juvelirske legure zlata 585. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 72(1), 53-57.
https://doi.org/10.5937/tehnika1701053K
conv_22

Karastojković Z, Perić R, Janjušević Z, Stojanović J. Rendgenska difrakciona analiza hladno valjanog lima od juvelirske legure zlata 585. in Tehnika. 2017;72(1):53-57.
doi:10.5937/tehnika1701053K
conv_22 .

Karastojković, Zoran, Perić, Radiša, Janjušević, Zoran, Stojanović, Jovica, "Rendgenska difrakciona analiza hladno valjanog lima od juvelirske legure zlata 585" in Tehnika, 72, no. 1 (2017):53-57,
https://doi.org/10.5937/tehnika1701053K .,
conv_22 .

TY  - JOUR
AU  - Janjušević, Zoran
AU  - Gulišija, Zvonko
AU  - Mihailović, Marija
AU  - Patarić, Aleksandra
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/328
AB  - The effect of tempering at 450 - 650A degrees C of different duration on mechanical properties and microstructure of a cast low-alloy steel is investigated. The ultimate rupture strength, the yield strength, the elongation and the Vickers hardness of the steel are determined. Metallographic analysis is performed.
PB  - Springer, New York
T2  - Metal Science and Heat Treatment
T1  - Effect of Tempering on Mechanical Properties and Microstructure of a High-Strength Low-Alloy Steel
EP  - 83
IS  - 1-2
SP  - 81
VL  - 56
DO  - 10.1007/s11041-014-9708-y
UR  - conv_693
ER  - 

@article{
author = "Janjušević, Zoran and Gulišija, Zvonko and Mihailović, Marija and Patarić, Aleksandra",
year = "2014",
abstract = "The effect of tempering at 450 - 650A degrees C of different duration on mechanical properties and microstructure of a cast low-alloy steel is investigated. The ultimate rupture strength, the yield strength, the elongation and the Vickers hardness of the steel are determined. Metallographic analysis is performed.",
publisher = "Springer, New York",
journal = "Metal Science and Heat Treatment",
title = "Effect of Tempering on Mechanical Properties and Microstructure of a High-Strength Low-Alloy Steel",
pages = "83-81",
number = "1-2",
volume = "56",
doi = "10.1007/s11041-014-9708-y",
url = "conv_693"
}

Janjušević, Z., Gulišija, Z., Mihailović, M.,& Patarić, A.. (2014). Effect of Tempering on Mechanical Properties and Microstructure of a High-Strength Low-Alloy Steel. in Metal Science and Heat Treatment
Springer, New York., 56(1-2), 81-83.
https://doi.org/10.1007/s11041-014-9708-y
conv_693

Janjušević Z, Gulišija Z, Mihailović M, Patarić A. Effect of Tempering on Mechanical Properties and Microstructure of a High-Strength Low-Alloy Steel. in Metal Science and Heat Treatment. 2014;56(1-2):81-83.
doi:10.1007/s11041-014-9708-y
conv_693 .

Janjušević, Zoran, Gulišija, Zvonko, Mihailović, Marija, Patarić, Aleksandra, "Effect of Tempering on Mechanical Properties and Microstructure of a High-Strength Low-Alloy Steel" in Metal Science and Heat Treatment, 56, no. 1-2 (2014):81-83,
https://doi.org/10.1007/s11041-014-9708-y .,
conv_693 .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Matković, Vladislav
AU  - Marković, Branislav
AU  - Gulišija, Zvonko
AU  - Patarić, Aleksandra
AU  - Mihailović, Marija
AU  - Janjušević, Zoran
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/300
AB  - Eksperimentalnim istraživanjima su definisani kako tehnološka šema dobijanja kalcijuma iz krečnjaka aluminotermijskim procesom tako i osnovni radni parametri pojedinih tehnoloških faza. Uzorci krečnjaka koji su korišćeni u radu imaju visok sadržaj Mg, Na i K. Rendgenska analiza je pokazala da uzorci uglavnom sadrže kalcit i u manjoj količini dolomit. Na početku je ispitan uticaj temperature, vremena i granulometrijskog sastava na kalcinaciju kalcijum-karbonata. Vreme trajanja procesa disocijacije je 10-15 min na 1200 °C i povećava se sa smanjenjem veličine čestica do 5 mm. Nakon toga, ispitana je aluminotermijska redukcija kalcijum-oksida. Na temperaturi od 1200 °C i vakuumu od 3 KPa proces redukcije se završava za 2 h. Analiza hemijskog sastava kalcijum-oksida i kalcijuma pokazuje povećan sadržaj magnezijum-oksida i oksida alkalnih metala, posebno natrijuma.
AB  - We present experimental investigations that define both the technological scheme of calcium production from limestone by aluminothermic process and the basic operating parameters of the particular technological phases. The limestone with high content of Mg, Na and K was used in the study. X-ray analysis reveals that the samples contain mainly calcite with small amount of dolomite. At first, the effects of temperature, time and granulometry on the calcium carbonate calcination were examined. The dissociation process was completed in 10-15 min at 1200 °C, and the dissociation rate increased with decreasing particle size down to 5 mm. Afterwards, the aluminothermic reduction process of calcium oxide was investigated. At a temperature of 1200 °C and vacuum of at least 3 kPa, the reduction process completed within 2 h. The chemical composition of calcium oxide and calcium showed increased content of magnesium oxide and alkaline oxides (especially sodium).
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Mogućnosti dobijanja kalcijuma iz karbonatnih mineralnih sirovina Republike Srbije
T1  - The possibilities of obtaining metallic calcium from Serbian carbonate mineral raw materials
EP  - 405
IS  - 3
SP  - 397
VL  - 20
DO  - 10.2298/CICEQ120817022S
UR  - conv_391
ER  - 

@article{
author = "Sokić, Miroslav and Matković, Vladislav and Marković, Branislav and Gulišija, Zvonko and Patarić, Aleksandra and Mihailović, Marija and Janjušević, Zoran",
year = "2014",
abstract = "Eksperimentalnim istraživanjima su definisani kako tehnološka šema dobijanja kalcijuma iz krečnjaka aluminotermijskim procesom tako i osnovni radni parametri pojedinih tehnoloških faza. Uzorci krečnjaka koji su korišćeni u radu imaju visok sadržaj Mg, Na i K. Rendgenska analiza je pokazala da uzorci uglavnom sadrže kalcit i u manjoj količini dolomit. Na početku je ispitan uticaj temperature, vremena i granulometrijskog sastava na kalcinaciju kalcijum-karbonata. Vreme trajanja procesa disocijacije je 10-15 min na 1200 °C i povećava se sa smanjenjem veličine čestica do 5 mm. Nakon toga, ispitana je aluminotermijska redukcija kalcijum-oksida. Na temperaturi od 1200 °C i vakuumu od 3 KPa proces redukcije se završava za 2 h. Analiza hemijskog sastava kalcijum-oksida i kalcijuma pokazuje povećan sadržaj magnezijum-oksida i oksida alkalnih metala, posebno natrijuma., We present experimental investigations that define both the technological scheme of calcium production from limestone by aluminothermic process and the basic operating parameters of the particular technological phases. The limestone with high content of Mg, Na and K was used in the study. X-ray analysis reveals that the samples contain mainly calcite with small amount of dolomite. At first, the effects of temperature, time and granulometry on the calcium carbonate calcination were examined. The dissociation process was completed in 10-15 min at 1200 °C, and the dissociation rate increased with decreasing particle size down to 5 mm. Afterwards, the aluminothermic reduction process of calcium oxide was investigated. At a temperature of 1200 °C and vacuum of at least 3 kPa, the reduction process completed within 2 h. The chemical composition of calcium oxide and calcium showed increased content of magnesium oxide and alkaline oxides (especially sodium).",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Mogućnosti dobijanja kalcijuma iz karbonatnih mineralnih sirovina Republike Srbije, The possibilities of obtaining metallic calcium from Serbian carbonate mineral raw materials",
pages = "405-397",
number = "3",
volume = "20",
doi = "10.2298/CICEQ120817022S",
url = "conv_391"
}

Sokić, M., Matković, V., Marković, B., Gulišija, Z., Patarić, A., Mihailović, M.,& Janjušević, Z.. (2014). Mogućnosti dobijanja kalcijuma iz karbonatnih mineralnih sirovina Republike Srbije. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 20(3), 397-405.
https://doi.org/10.2298/CICEQ120817022S
conv_391

Sokić M, Matković V, Marković B, Gulišija Z, Patarić A, Mihailović M, Janjušević Z. Mogućnosti dobijanja kalcijuma iz karbonatnih mineralnih sirovina Republike Srbije. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2014;20(3):397-405.
doi:10.2298/CICEQ120817022S
conv_391 .

Sokić, Miroslav, Matković, Vladislav, Marković, Branislav, Gulišija, Zvonko, Patarić, Aleksandra, Mihailović, Marija, Janjušević, Zoran, "Mogućnosti dobijanja kalcijuma iz karbonatnih mineralnih sirovina Republike Srbije" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 20, no. 3 (2014):397-405,
https://doi.org/10.2298/CICEQ120817022S .,
conv_391 .

TY  - JOUR
AU  - Gulišija, Zvonko
AU  - Patarić, Aleksandra
AU  - Mihailović, Marija
AU  - Janjušević, Zoran
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/298
AB  - U radu je prikazana mogućnost dobijanja homogenije mikrostrukture i ravnomernije raspodele legirajućih elemenata Zn i Mg u aluminijumskoj leguri EN AW 7075, prilikom livenja u prisustvu elektromagnetnog polja. Ispitana su i mehanička svojstva uzoraka koji su odliveni bez i sa elektromagnetnin poljem. Rezultati pokazuju da se livenjem u elektromagnetnom polju postižu prednosti u odnosu na klasičan postupak livenja aluminijumskih legura.
AB  - The microstructure and the mechanical properties of the samples obtained by conventional vertical continuous casting and electromagnetic casting of 7075 aluminum as-cast alloy were investigated. The better surface quality, more homogeneous alloying elements distribution and hence the microstructure and better mechanical properties were obtained in samples casted with electromagnetic field (EMF) compared with samples casted without EMF. The microstructure was analyzed by optical microscope and the variation of alloying elements, Zn and Mg, through the sample cross section was examined by chemical analysis. The mechanical properties of samples casted with and without electromagnetic field were determined using computerized materials testing machine Zwick/Roel Z 100.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Poboljšavanje osobina odlivaka od aluminijumske legure 7075
T1  - Properties improvement of the al 7075 alloy castings
EP  - 426
IS  - 3
SP  - 424
VL  - 69
DO  - 10.5937/tehnika1403424G
UR  - conv_14
ER  - 

@article{
author = "Gulišija, Zvonko and Patarić, Aleksandra and Mihailović, Marija and Janjušević, Zoran",
year = "2014",
abstract = "U radu je prikazana mogućnost dobijanja homogenije mikrostrukture i ravnomernije raspodele legirajućih elemenata Zn i Mg u aluminijumskoj leguri EN AW 7075, prilikom livenja u prisustvu elektromagnetnog polja. Ispitana su i mehanička svojstva uzoraka koji su odliveni bez i sa elektromagnetnin poljem. Rezultati pokazuju da se livenjem u elektromagnetnom polju postižu prednosti u odnosu na klasičan postupak livenja aluminijumskih legura., The microstructure and the mechanical properties of the samples obtained by conventional vertical continuous casting and electromagnetic casting of 7075 aluminum as-cast alloy were investigated. The better surface quality, more homogeneous alloying elements distribution and hence the microstructure and better mechanical properties were obtained in samples casted with electromagnetic field (EMF) compared with samples casted without EMF. The microstructure was analyzed by optical microscope and the variation of alloying elements, Zn and Mg, through the sample cross section was examined by chemical analysis. The mechanical properties of samples casted with and without electromagnetic field were determined using computerized materials testing machine Zwick/Roel Z 100.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Poboljšavanje osobina odlivaka od aluminijumske legure 7075, Properties improvement of the al 7075 alloy castings",
pages = "426-424",
number = "3",
volume = "69",
doi = "10.5937/tehnika1403424G",
url = "conv_14"
}

Gulišija, Z., Patarić, A., Mihailović, M.,& Janjušević, Z.. (2014). Poboljšavanje osobina odlivaka od aluminijumske legure 7075. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 69(3), 424-426.
https://doi.org/10.5937/tehnika1403424G
conv_14

Gulišija Z, Patarić A, Mihailović M, Janjušević Z. Poboljšavanje osobina odlivaka od aluminijumske legure 7075. in Tehnika. 2014;69(3):424-426.
doi:10.5937/tehnika1403424G
conv_14 .

Gulišija, Zvonko, Patarić, Aleksandra, Mihailović, Marija, Janjušević, Zoran, "Poboljšavanje osobina odlivaka od aluminijumske legure 7075" in Tehnika, 69, no. 3 (2014):424-426,
https://doi.org/10.5937/tehnika1403424G .,
conv_14 .

TY  - JOUR
AU  - Janjušević, Zoran
AU  - Gulišija, Zvonko
AU  - Mihailović, Marija
AU  - Patarić, Aleksandra
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/289
AB  - The processes that take place at the liquid metal-sand mold interface during the casting and crystallization of metal were studied in this paper. The mold was made using the CO2 - Method, with the addition of active components, such as: MgO, TiO2, AIK(SO4)(2) and Na2SO4. At the liquid steel pouring temperature, these active components undergo decomposition in the mold, caused by heat release during pouring, Crystallization and cooling of castings. Silicates, which have an important influence on casting surface quality, are formed as a result of the interaction between the mould material and liquid steel.
PB  - Croatian Metallurgical Society
T2  - Metalurgija
T1  - Processes at the inetrface molten metal-sand mold
EP  - 200
IS  - 2
SP  - 197
VL  - 53
UR  - conv_1053
ER  - 

@article{
author = "Janjušević, Zoran and Gulišija, Zvonko and Mihailović, Marija and Patarić, Aleksandra",
year = "2014",
abstract = "The processes that take place at the liquid metal-sand mold interface during the casting and crystallization of metal were studied in this paper. The mold was made using the CO2 - Method, with the addition of active components, such as: MgO, TiO2, AIK(SO4)(2) and Na2SO4. At the liquid steel pouring temperature, these active components undergo decomposition in the mold, caused by heat release during pouring, Crystallization and cooling of castings. Silicates, which have an important influence on casting surface quality, are formed as a result of the interaction between the mould material and liquid steel.",
publisher = "Croatian Metallurgical Society",
journal = "Metalurgija",
title = "Processes at the inetrface molten metal-sand mold",
pages = "200-197",
number = "2",
volume = "53",
url = "conv_1053"
}

Janjušević, Z., Gulišija, Z., Mihailović, M.,& Patarić, A.. (2014). Processes at the inetrface molten metal-sand mold. in Metalurgija
Croatian Metallurgical Society., 53(2), 197-200.
conv_1053

Janjušević Z, Gulišija Z, Mihailović M, Patarić A. Processes at the inetrface molten metal-sand mold. in Metalurgija. 2014;53(2):197-200.
conv_1053 .

Janjušević, Zoran, Gulišija, Zvonko, Mihailović, Marija, Patarić, Aleksandra, "Processes at the inetrface molten metal-sand mold" in Metalurgija, 53, no. 2 (2014):197-200,
conv_1053 .

TY  - JOUR
AU  - Mihailović, Marija
AU  - Patarić, Aleksandra
AU  - Gulišija, Zvonko
AU  - Janjušević, Zoran
AU  - Sokić, Miroslav
PY  - 2013
UR  - https://ritnms.itnms.ac.rs/handle/123456789/277
AB  - Hidroksiapatitna (HAp) prevlaka je atmosferskim (APS) plazma-sprej postupkom naneta na metalne uzorke napravljene od 316LVM čelika, namenjenog za izradu implantata u ortopedskoj hirurgiji. Razvoj savremenih ortopedskih implantata podrazumeva da se na podlogu od bioinertnih legura nanosi bioaktivna HAp prevlaka. Sintetički HAp je hemijski sličan onom koji čini mineralnu građu kostiju i zuba. Zahvaljujući dobrim bioaktivnim svojstvima hidroksiapatitnih prevlaka moguće je obrazovanje stabilne veze između koštanog tkiva i implantata. U radu je prikazana mogućnost primene APS postupka za dobijanje stabilnih HAp prevlaka na uzorcima od nerđajućeg čelika 316LVM. Praćena je mikrostruktura i poroznost prevlake metodom optičke mikroskopije i skenirajuće elektronske mikroskopije. Ca/P odnos je određen EDS analizom.
AB  - For decades, the standard metallic materials for hip implants, besides the 316LVM stainless steel, were titanium- and cobalt/chromium-based alloys. Although bioinert, due to their corrosion resistance, they are not biocompatible. Contemporary surgical implants are no longer made solely from bioinert metals anymore, but with deposited bioactive hydroxyapatite (HAp) coatings. Hydroxyapatite is chemically identical with the mineral constituent of bones and teeth, which, besides its biocompatibility, provides bioactivity as well. The HAp limitations are, however, weak tensile strength and low fatigue resistance for long term loadings, if used alone. This is the reason for HAp to be deposited onto the surgical implant, and to enable its bioactivity, which means intergrowth with bones, and therefore the long-lasting and mechanical stable non-cemented prosthesis. This is important predominantly because of the need for such prostheses for younger population and a better life quality. There are several contemporary techniques that have been used for deposition of these coatings onto the metal implant. The possibilities of atmospheric plasma-spraying for obtaining stable HAp coatings on 316LVM stainless steel, ordinarily used as a standard material for hip implants production, are presented in this paper. The coatings of a commercially available hydroxyapatite powder were plasma-sprayed onto specimens of medical grade 316LVM stainless steel under various operating conditions. Optical microscopy was used for microstructure and porosity characterization, while the coating morphology and Ca/P ratio were analyzed using an SEM equipped with EDX. The coating microstructure varied from a porous to a glassy structure, depending on the operating conditions and coating thickness. Coating porosity was determined to be at the lower required limit requested for the bone-coating intergrowth possibility, but nevertheless adhesion measurements showed good results. The Ca/P ratio was determined for both as-deposited coatings and after ageing in distilled water for various time and temperature combination.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Mogućnosti primene atmosferskog plazma-sprej postupka za dobijanje prevlaka hidroksiapatita na uzorcima od nerđajućeg čelika
T1  - The possibilities of atmospheric plasma-spraying application to obtain hydroxyapatite coatings on the stainless steel samples
EP  - 757
IS  - 5
SP  - 753
VL  - 67
DO  - 10.2298/HEMIND120910001M
UR  - conv_301
ER  - 

@article{
author = "Mihailović, Marija and Patarić, Aleksandra and Gulišija, Zvonko and Janjušević, Zoran and Sokić, Miroslav",
year = "2013",
abstract = "Hidroksiapatitna (HAp) prevlaka je atmosferskim (APS) plazma-sprej postupkom naneta na metalne uzorke napravljene od 316LVM čelika, namenjenog za izradu implantata u ortopedskoj hirurgiji. Razvoj savremenih ortopedskih implantata podrazumeva da se na podlogu od bioinertnih legura nanosi bioaktivna HAp prevlaka. Sintetički HAp je hemijski sličan onom koji čini mineralnu građu kostiju i zuba. Zahvaljujući dobrim bioaktivnim svojstvima hidroksiapatitnih prevlaka moguće je obrazovanje stabilne veze između koštanog tkiva i implantata. U radu je prikazana mogućnost primene APS postupka za dobijanje stabilnih HAp prevlaka na uzorcima od nerđajućeg čelika 316LVM. Praćena je mikrostruktura i poroznost prevlake metodom optičke mikroskopije i skenirajuće elektronske mikroskopije. Ca/P odnos je određen EDS analizom., For decades, the standard metallic materials for hip implants, besides the 316LVM stainless steel, were titanium- and cobalt/chromium-based alloys. Although bioinert, due to their corrosion resistance, they are not biocompatible. Contemporary surgical implants are no longer made solely from bioinert metals anymore, but with deposited bioactive hydroxyapatite (HAp) coatings. Hydroxyapatite is chemically identical with the mineral constituent of bones and teeth, which, besides its biocompatibility, provides bioactivity as well. The HAp limitations are, however, weak tensile strength and low fatigue resistance for long term loadings, if used alone. This is the reason for HAp to be deposited onto the surgical implant, and to enable its bioactivity, which means intergrowth with bones, and therefore the long-lasting and mechanical stable non-cemented prosthesis. This is important predominantly because of the need for such prostheses for younger population and a better life quality. There are several contemporary techniques that have been used for deposition of these coatings onto the metal implant. The possibilities of atmospheric plasma-spraying for obtaining stable HAp coatings on 316LVM stainless steel, ordinarily used as a standard material for hip implants production, are presented in this paper. The coatings of a commercially available hydroxyapatite powder were plasma-sprayed onto specimens of medical grade 316LVM stainless steel under various operating conditions. Optical microscopy was used for microstructure and porosity characterization, while the coating morphology and Ca/P ratio were analyzed using an SEM equipped with EDX. The coating microstructure varied from a porous to a glassy structure, depending on the operating conditions and coating thickness. Coating porosity was determined to be at the lower required limit requested for the bone-coating intergrowth possibility, but nevertheless adhesion measurements showed good results. The Ca/P ratio was determined for both as-deposited coatings and after ageing in distilled water for various time and temperature combination.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Mogućnosti primene atmosferskog plazma-sprej postupka za dobijanje prevlaka hidroksiapatita na uzorcima od nerđajućeg čelika, The possibilities of atmospheric plasma-spraying application to obtain hydroxyapatite coatings on the stainless steel samples",
pages = "757-753",
number = "5",
volume = "67",
doi = "10.2298/HEMIND120910001M",
url = "conv_301"
}

Mihailović, M., Patarić, A., Gulišija, Z., Janjušević, Z.,& Sokić, M.. (2013). Mogućnosti primene atmosferskog plazma-sprej postupka za dobijanje prevlaka hidroksiapatita na uzorcima od nerđajućeg čelika. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 67(5), 753-757.
https://doi.org/10.2298/HEMIND120910001M
conv_301

Mihailović M, Patarić A, Gulišija Z, Janjušević Z, Sokić M. Mogućnosti primene atmosferskog plazma-sprej postupka za dobijanje prevlaka hidroksiapatita na uzorcima od nerđajućeg čelika. in Hemijska industrija. 2013;67(5):753-757.
doi:10.2298/HEMIND120910001M
conv_301 .

Mihailović, Marija, Patarić, Aleksandra, Gulišija, Zvonko, Janjušević, Zoran, Sokić, Miroslav, "Mogućnosti primene atmosferskog plazma-sprej postupka za dobijanje prevlaka hidroksiapatita na uzorcima od nerđajućeg čelika" in Hemijska industrija, 67, no. 5 (2013):753-757,
https://doi.org/10.2298/HEMIND120910001M .,
conv_301 .

TY  - JOUR
AU  - Gulišija, Zvonko
AU  - Patarić, Aleksandra
AU  - Mihailović, Marija
AU  - Janjušević, Zoran
PY  - 2013
UR  - https://ritnms.itnms.ac.rs/handle/123456789/279
AB  - U radu su prikazani osnovi elektromagnetnog postupka livenja aluminijumske legure EN AW 7075 kao i rezultati mehaničke karakterizacije otkovka od ove legure koja je dobijena livenjem klasičnim polukontinualnim postupkom livenja i livenjem pod dejstvom elektromagnetnog polja sa dve različite frekvence. Rezultati pokazuju da uzorci otkovaka dobijeni od legure koja je livena u elektromagnetnom polju imaju zadovoljavajuće vrednosti mehaničkih svojstava i da se pravilnim izborom radnih parametara livenja mogu stvoriti uslovi za skraćenje tehnološkog postupka prerade ove legure.
AB  - The electromagnetic casting process fundamentals of EN AW 7075 Al-alloy casting, as well as the mechanical characterization results of this alloy forgings are presented in this paper. Forgings are obtained from the alloy casted by classical semi-continuous casting process and by electromagnetic casting process using two different frequencies. Results reveal that forgings obtained from the alloy casted by electromagnetic casting process have adequate values of mechanical properties and that proper choice of operating parameters can lead to shortening of this alloy processing.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Mehanička svojstva otkovaka od legure Al EN AW 7075 dobijene elektromagnetnim livenjem
T1  - Mechanical properties of forgings obtained from 7075 Al-alloy casted under electromegnetic field influence
EP  - 258
IS  - 3
SP  - 255
VL  - 54
UR  - conv_132
ER  - 

@article{
author = "Gulišija, Zvonko and Patarić, Aleksandra and Mihailović, Marija and Janjušević, Zoran",
year = "2013",
abstract = "U radu su prikazani osnovi elektromagnetnog postupka livenja aluminijumske legure EN AW 7075 kao i rezultati mehaničke karakterizacije otkovka od ove legure koja je dobijena livenjem klasičnim polukontinualnim postupkom livenja i livenjem pod dejstvom elektromagnetnog polja sa dve različite frekvence. Rezultati pokazuju da uzorci otkovaka dobijeni od legure koja je livena u elektromagnetnom polju imaju zadovoljavajuće vrednosti mehaničkih svojstava i da se pravilnim izborom radnih parametara livenja mogu stvoriti uslovi za skraćenje tehnološkog postupka prerade ove legure., The electromagnetic casting process fundamentals of EN AW 7075 Al-alloy casting, as well as the mechanical characterization results of this alloy forgings are presented in this paper. Forgings are obtained from the alloy casted by classical semi-continuous casting process and by electromagnetic casting process using two different frequencies. Results reveal that forgings obtained from the alloy casted by electromagnetic casting process have adequate values of mechanical properties and that proper choice of operating parameters can lead to shortening of this alloy processing.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Mehanička svojstva otkovaka od legure Al EN AW 7075 dobijene elektromagnetnim livenjem, Mechanical properties of forgings obtained from 7075 Al-alloy casted under electromegnetic field influence",
pages = "258-255",
number = "3",
volume = "54",
url = "conv_132"
}

Gulišija, Z., Patarić, A., Mihailović, M.,& Janjušević, Z.. (2013). Mehanička svojstva otkovaka od legure Al EN AW 7075 dobijene elektromagnetnim livenjem. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 54(3), 255-258.
conv_132

Gulišija Z, Patarić A, Mihailović M, Janjušević Z. Mehanička svojstva otkovaka od legure Al EN AW 7075 dobijene elektromagnetnim livenjem. in Zaštita materijala. 2013;54(3):255-258.
conv_132 .

Gulišija, Zvonko, Patarić, Aleksandra, Mihailović, Marija, Janjušević, Zoran, "Mehanička svojstva otkovaka od legure Al EN AW 7075 dobijene elektromagnetnim livenjem" in Zaštita materijala, 54, no. 3 (2013):255-258,
conv_132 .

TY  - JOUR
AU  - Mihailović, Marija
AU  - Patarić, Aleksandra
AU  - Gulišija, Zvonko
AU  - Janjušević, Zoran
AU  - Sokić, Miroslav
AU  - Lačnjevac, Časlav
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/240
AB  - Metalni implantati za ortopedsku hirurgiju izrađuju se najčešće od nerđajućeg čelika, legura na bazi titana, kobalta ili hroma, koje imaju odlične konstrukcione i mehaničke osobine i otporne su na koroziju. Ipak, ovakvi implantati poldožni su lokalnoj koroziji u ljudskom telu jer je zapaženo prisustvo njihovih metalnih jona u okolnim tkivima i telesnim tečnostima. Da bi se iskoristila prednost njihovih mehaničkih karakteristika, a postigla biokompatibilnost, moguće je na njihovu površinu naneti bioinertnu ili čak bioaktivnu prevlaku. Hidroksiapatit je poznat po svom bioaktivnom ponašanju, koje duguje hemijskoj istovetnosti sa ljudskim kostima. Elektroforetska deopzicija je relativno stara tehnika, koja je ovde primenjena uz upotrebu novog materijala - nanostrukturnog hidroksiapatita, kako bi se dobile ravnomerne i kompaktne hidroksiapatitne prevlake i tako prevazišla ograničenja prethodno korišćenih visokotemperaturnih tehnika nanošenja prevlaka i problemi sa složenim oblikom metalnog supstrata. Prevlake nanostrukturnog hidroksiapatita eletroforetski su deponovane na peskiranu površinu uzoraka od nerđajućeg čelika 316LVM, pri konstantnom naponu, za različito vreme deponovanja, a zatim su sinterovane u atmosferi argona na 1000oC. Toplotna stabilnost HAp praha prvo je ocenjena DTA/TG analizom u temperaturnom intervalu 23oC-1000oC. Za mikrostrukturnu karakterizaciju prevlake korišćen je SEM, a za određivanje faznog sastava XRD analiza.
AB  - Surgical metallic implants are usually made of stainless steel, titanium- and cobalt/chromium- based alloys which have superior structural and mechanical properties, and are corrosion resistant. Nevertheless, they are susceptible to local corrosion in the human body, releasing metal ions into the nearby body tissue and fluids. Keeping the advantage of their mechanical properties, their biocompatibility can be achieved through deposition the bioinert or even bioactive coating onto their surface. Hydroxyapatite is known by its bioactive behavior, originating from its chemical identity with human bones. The electrophoretic deposition is rather old technique used here with a novel nanostructured hydroxyapatite powder to obtain uniform and dense hydroxyapatite coatings, to overcome the restrictions of previously used high temperature coating techniques and to overcome the complex geometry metallic substrate problems. The coating of nanosized hydroxyapatite was electrophoretically deposited on blasted surface of stainless steel 316LVM samples at constant voltage, for different deposition times and subsequently sintered in argon atmosphere at 1000 oC. The HAp powder thermal stability was initially assessed using DTA-TG analyses over the temperature range of 23oC-1000oC. The microstructure characterization of the coating was accomplished using SEM, and phase composition was determined by XRD.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Mogućnost dobijanja bioaktivnih prevlaka elektroforetskim deponovanjem hidroksiapatita na čelične implantate
T1  - The possibility of bioactive coatings obtaining by electrophoretic deposition of HAp on the steel implants
EP  - 66
IS  - 1
SP  - 62
VL  - 53
UR  - conv_124
ER  - 

@article{
author = "Mihailović, Marija and Patarić, Aleksandra and Gulišija, Zvonko and Janjušević, Zoran and Sokić, Miroslav and Lačnjevac, Časlav",
year = "2012",
abstract = "Metalni implantati za ortopedsku hirurgiju izrađuju se najčešće od nerđajućeg čelika, legura na bazi titana, kobalta ili hroma, koje imaju odlične konstrukcione i mehaničke osobine i otporne su na koroziju. Ipak, ovakvi implantati poldožni su lokalnoj koroziji u ljudskom telu jer je zapaženo prisustvo njihovih metalnih jona u okolnim tkivima i telesnim tečnostima. Da bi se iskoristila prednost njihovih mehaničkih karakteristika, a postigla biokompatibilnost, moguće je na njihovu površinu naneti bioinertnu ili čak bioaktivnu prevlaku. Hidroksiapatit je poznat po svom bioaktivnom ponašanju, koje duguje hemijskoj istovetnosti sa ljudskim kostima. Elektroforetska deopzicija je relativno stara tehnika, koja je ovde primenjena uz upotrebu novog materijala - nanostrukturnog hidroksiapatita, kako bi se dobile ravnomerne i kompaktne hidroksiapatitne prevlake i tako prevazišla ograničenja prethodno korišćenih visokotemperaturnih tehnika nanošenja prevlaka i problemi sa složenim oblikom metalnog supstrata. Prevlake nanostrukturnog hidroksiapatita eletroforetski su deponovane na peskiranu površinu uzoraka od nerđajućeg čelika 316LVM, pri konstantnom naponu, za različito vreme deponovanja, a zatim su sinterovane u atmosferi argona na 1000oC. Toplotna stabilnost HAp praha prvo je ocenjena DTA/TG analizom u temperaturnom intervalu 23oC-1000oC. Za mikrostrukturnu karakterizaciju prevlake korišćen je SEM, a za određivanje faznog sastava XRD analiza., Surgical metallic implants are usually made of stainless steel, titanium- and cobalt/chromium- based alloys which have superior structural and mechanical properties, and are corrosion resistant. Nevertheless, they are susceptible to local corrosion in the human body, releasing metal ions into the nearby body tissue and fluids. Keeping the advantage of their mechanical properties, their biocompatibility can be achieved through deposition the bioinert or even bioactive coating onto their surface. Hydroxyapatite is known by its bioactive behavior, originating from its chemical identity with human bones. The electrophoretic deposition is rather old technique used here with a novel nanostructured hydroxyapatite powder to obtain uniform and dense hydroxyapatite coatings, to overcome the restrictions of previously used high temperature coating techniques and to overcome the complex geometry metallic substrate problems. The coating of nanosized hydroxyapatite was electrophoretically deposited on blasted surface of stainless steel 316LVM samples at constant voltage, for different deposition times and subsequently sintered in argon atmosphere at 1000 oC. The HAp powder thermal stability was initially assessed using DTA-TG analyses over the temperature range of 23oC-1000oC. The microstructure characterization of the coating was accomplished using SEM, and phase composition was determined by XRD.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Mogućnost dobijanja bioaktivnih prevlaka elektroforetskim deponovanjem hidroksiapatita na čelične implantate, The possibility of bioactive coatings obtaining by electrophoretic deposition of HAp on the steel implants",
pages = "66-62",
number = "1",
volume = "53",
url = "conv_124"
}

Mihailović, M., Patarić, A., Gulišija, Z., Janjušević, Z., Sokić, M.,& Lačnjevac, Č.. (2012). Mogućnost dobijanja bioaktivnih prevlaka elektroforetskim deponovanjem hidroksiapatita na čelične implantate. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 53(1), 62-66.
conv_124

Mihailović M, Patarić A, Gulišija Z, Janjušević Z, Sokić M, Lačnjevac Č. Mogućnost dobijanja bioaktivnih prevlaka elektroforetskim deponovanjem hidroksiapatita na čelične implantate. in Zaštita materijala. 2012;53(1):62-66.
conv_124 .

Mihailović, Marija, Patarić, Aleksandra, Gulišija, Zvonko, Janjušević, Zoran, Sokić, Miroslav, Lačnjevac, Časlav, "Mogućnost dobijanja bioaktivnih prevlaka elektroforetskim deponovanjem hidroksiapatita na čelične implantate" in Zaštita materijala, 53, no. 1 (2012):62-66,
conv_124 .

TY  - JOUR
AU  - Janjušević, Zoran
AU  - Gulišija, Zvonko
AU  - Mihailović, Marija
AU  - Patarić, Aleksandra
AU  - Karastojković, Zoran
AU  - Kovačević, Z.
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/241
AB  - Od vrste i kvaliteta kalupne mešavine odnosno njenog ponašanja u dodiru sa stopljenim metalom u realnim uslovima najviše zavise intenzitet, i uopšte razvoj, pojedinih procesa na graničnoj površini dodira metal-kalup. Značajno mesto u odigravanju procesa međusobnog delovanja livačkih kalupa i tečnog metala pored hemijskog, mineralnog sastava peska, vrste vezivnog sredstva imaju i dodaci kalupnim mešavinama. Ovi dodaci, tj aktivne komponente, uslovljavaju određene promene na povišenim temperaturama u samoj mešavini kao i njeno reagovanje sa površinskim slojem tečnog metala. Cilj ispitivanja je bio da se vidi u kolikoj meri sastav kalupne mešavine sa i bez dodatih-aktivnih komponenata utiče na površinu odlivaka.
AB  - The intensity, and overall development of individual process on the metal-mould interface depend on the type and quality of mould mixture or its behavior in contact with the melted metal in real conditions. Important role in interaction between foundry moulds and liquid metals, in addition to chemical and mineral composition of sand, and a type of binding material, play also additives for mould mixtures. These additives, i.e. active components, provided some changes at elevated temperatures inside the mixture, as well as its reaction with the surface layer of liquid metal. The aim of this investigation was to determine how the composition of the mould mixture with and without active components affect the surface of castings.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Uticaj dodavanja aktivnih komponenti kalupnoj mešavini na površinu odlivaka
T1  - Influence of active components addition to mould mixture on the castings surface
EP  - 130
IS  - 2
SP  - 127
VL  - 53
UR  - conv_125
ER  - 

@article{
author = "Janjušević, Zoran and Gulišija, Zvonko and Mihailović, Marija and Patarić, Aleksandra and Karastojković, Zoran and Kovačević, Z.",
year = "2012",
abstract = "Od vrste i kvaliteta kalupne mešavine odnosno njenog ponašanja u dodiru sa stopljenim metalom u realnim uslovima najviše zavise intenzitet, i uopšte razvoj, pojedinih procesa na graničnoj površini dodira metal-kalup. Značajno mesto u odigravanju procesa međusobnog delovanja livačkih kalupa i tečnog metala pored hemijskog, mineralnog sastava peska, vrste vezivnog sredstva imaju i dodaci kalupnim mešavinama. Ovi dodaci, tj aktivne komponente, uslovljavaju određene promene na povišenim temperaturama u samoj mešavini kao i njeno reagovanje sa površinskim slojem tečnog metala. Cilj ispitivanja je bio da se vidi u kolikoj meri sastav kalupne mešavine sa i bez dodatih-aktivnih komponenata utiče na površinu odlivaka., The intensity, and overall development of individual process on the metal-mould interface depend on the type and quality of mould mixture or its behavior in contact with the melted metal in real conditions. Important role in interaction between foundry moulds and liquid metals, in addition to chemical and mineral composition of sand, and a type of binding material, play also additives for mould mixtures. These additives, i.e. active components, provided some changes at elevated temperatures inside the mixture, as well as its reaction with the surface layer of liquid metal. The aim of this investigation was to determine how the composition of the mould mixture with and without active components affect the surface of castings.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Uticaj dodavanja aktivnih komponenti kalupnoj mešavini na površinu odlivaka, Influence of active components addition to mould mixture on the castings surface",
pages = "130-127",
number = "2",
volume = "53",
url = "conv_125"
}

Janjušević, Z., Gulišija, Z., Mihailović, M., Patarić, A., Karastojković, Z.,& Kovačević, Z.. (2012). Uticaj dodavanja aktivnih komponenti kalupnoj mešavini na površinu odlivaka. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 53(2), 127-130.
conv_125

Janjušević Z, Gulišija Z, Mihailović M, Patarić A, Karastojković Z, Kovačević Z. Uticaj dodavanja aktivnih komponenti kalupnoj mešavini na površinu odlivaka. in Zaštita materijala. 2012;53(2):127-130.
conv_125 .

Janjušević, Zoran, Gulišija, Zvonko, Mihailović, Marija, Patarić, Aleksandra, Karastojković, Zoran, Kovačević, Z., "Uticaj dodavanja aktivnih komponenti kalupnoj mešavini na površinu odlivaka" in Zaštita materijala, 53, no. 2 (2012):127-130,
conv_125 .

TY  - JOUR
AU  - Janjušević, Zoran
AU  - Gulišija, Zvonko
AU  - Mihailović, Marija
AU  - Patarić, Aleksandra
PY  - 2009
UR  - https://ritnms.itnms.ac.rs/handle/123456789/146
AB  - High strength low-alloyed (HSLA) Cr-Mn-Si steels belong to a group of steels that can reach their full mechanical properties after quenching and tempering. Those properties depend both on the temperature and time of tempering. Knowing the tempering parameters, it is possible to reach the desired properties of the treated steel. Some results on investigating the Hollomon-Jaffe equation (in parametric form) application for tempering of HSLA steel, are shown in this paper. The experiments were performed in real production conditions, using a standard material. The quenching was performed at 870°C, the heating period was always 30 min, with subsequent cooling into the oil bath. The tempering was carried out in temperature range from 480 to 680°C, while tempering time varied from 15 min to 24 h. The degree of tempering is referred through the hardness values changing. The experimental results have shown a pretty well agreement to tempering parameters, included in Hollomon-Jaffe equation, for this kind of HSLA steel.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - The investigation of applicability of the Hollomon-Jaffe equation on tempering the HSLA steel
EP  - 136
IS  - 3
SP  - 131
VL  - 15
DO  - 10.2298/CICEQ0903131J
UR  - conv_386
ER  - 

@article{
author = "Janjušević, Zoran and Gulišija, Zvonko and Mihailović, Marija and Patarić, Aleksandra",
year = "2009",
abstract = "High strength low-alloyed (HSLA) Cr-Mn-Si steels belong to a group of steels that can reach their full mechanical properties after quenching and tempering. Those properties depend both on the temperature and time of tempering. Knowing the tempering parameters, it is possible to reach the desired properties of the treated steel. Some results on investigating the Hollomon-Jaffe equation (in parametric form) application for tempering of HSLA steel, are shown in this paper. The experiments were performed in real production conditions, using a standard material. The quenching was performed at 870°C, the heating period was always 30 min, with subsequent cooling into the oil bath. The tempering was carried out in temperature range from 480 to 680°C, while tempering time varied from 15 min to 24 h. The degree of tempering is referred through the hardness values changing. The experimental results have shown a pretty well agreement to tempering parameters, included in Hollomon-Jaffe equation, for this kind of HSLA steel.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "The investigation of applicability of the Hollomon-Jaffe equation on tempering the HSLA steel",
pages = "136-131",
number = "3",
volume = "15",
doi = "10.2298/CICEQ0903131J",
url = "conv_386"
}

Janjušević, Z., Gulišija, Z., Mihailović, M.,& Patarić, A.. (2009). The investigation of applicability of the Hollomon-Jaffe equation on tempering the HSLA steel. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 15(3), 131-136.
https://doi.org/10.2298/CICEQ0903131J
conv_386

Janjušević Z, Gulišija Z, Mihailović M, Patarić A. The investigation of applicability of the Hollomon-Jaffe equation on tempering the HSLA steel. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2009;15(3):131-136.
doi:10.2298/CICEQ0903131J
conv_386 .

Janjušević, Zoran, Gulišija, Zvonko, Mihailović, Marija, Patarić, Aleksandra, "The investigation of applicability of the Hollomon-Jaffe equation on tempering the HSLA steel" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 15, no. 3 (2009):131-136,
https://doi.org/10.2298/CICEQ0903131J .,
conv_386 .

TY  - JOUR
AU  - Gulišija, Zvonko
AU  - Patarić, Aleksandra
AU  - Janjušević, Zoran
AU  - Jordović, Branka
PY  - 2008
UR  - https://ritnms.itnms.ac.rs/handle/123456789/140
AB  - Proučavana je mikrostruktura odlivaka koji su dobijeni kontinuiranim livenjem Al legure EN AW 2024 čija se kristalizacija odvijala bez uticaja i pod uticajem elektromagnetnog polja malih frekvencija. Mikrostrukturna analiza pokazuje da se pod dejstvom niskofrekventnog elektromagnetnog polja dobija finija i po preseku homogenija mikrostruktura. S obzirom da su ovo kod nas prva primenjena istraživanja uticaja elektromagnetnog polja na proces očvršćavanja, rezultati jasno ukazuju u kom pravcu treba menjati radne parametre kako bi se dobili odlivci optimalnog kvaliteta.
AB  - The results presented in this paper were obtained from microstructure examination of Al alloy 2024 ingots casted with or without low-frequency electromagnetic field. The microstructure characterization shows that it is possible to get finer and more homogeneous microstructure through the entire cross section of ingots casted with electromagnetic field, compared to ingots casted without electromagnetic field. Although, this is our first examination into the effect of electromagnetic field on process of solidification, it is obvious in which way the operation parameters should be varied in order to get a good quality of ingots.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika - Rudarstvo, geologija i metalurgija
T1  - Mikrostruktura odlivaka Al legure 2024 dobijenih elektromagnetnim postupkom livenja
T1  - Effect of electromagnetic casting on the microstructure of 2024 Al alloy ingots
EP  - 4
IS  - 1
SP  - 1
VL  - 59
UR  - conv_76
ER  - 

@article{
author = "Gulišija, Zvonko and Patarić, Aleksandra and Janjušević, Zoran and Jordović, Branka",
year = "2008",
abstract = "Proučavana je mikrostruktura odlivaka koji su dobijeni kontinuiranim livenjem Al legure EN AW 2024 čija se kristalizacija odvijala bez uticaja i pod uticajem elektromagnetnog polja malih frekvencija. Mikrostrukturna analiza pokazuje da se pod dejstvom niskofrekventnog elektromagnetnog polja dobija finija i po preseku homogenija mikrostruktura. S obzirom da su ovo kod nas prva primenjena istraživanja uticaja elektromagnetnog polja na proces očvršćavanja, rezultati jasno ukazuju u kom pravcu treba menjati radne parametre kako bi se dobili odlivci optimalnog kvaliteta., The results presented in this paper were obtained from microstructure examination of Al alloy 2024 ingots casted with or without low-frequency electromagnetic field. The microstructure characterization shows that it is possible to get finer and more homogeneous microstructure through the entire cross section of ingots casted with electromagnetic field, compared to ingots casted without electromagnetic field. Although, this is our first examination into the effect of electromagnetic field on process of solidification, it is obvious in which way the operation parameters should be varied in order to get a good quality of ingots.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika - Rudarstvo, geologija i metalurgija",
title = "Mikrostruktura odlivaka Al legure 2024 dobijenih elektromagnetnim postupkom livenja, Effect of electromagnetic casting on the microstructure of 2024 Al alloy ingots",
pages = "4-1",
number = "1",
volume = "59",
url = "conv_76"
}

Gulišija, Z., Patarić, A., Janjušević, Z.,& Jordović, B.. (2008). Mikrostruktura odlivaka Al legure 2024 dobijenih elektromagnetnim postupkom livenja. in Tehnika - Rudarstvo, geologija i metalurgija
Savez inženjera i tehničara Srbije, Beograd., 59(1), 1-4.
conv_76

Gulišija Z, Patarić A, Janjušević Z, Jordović B. Mikrostruktura odlivaka Al legure 2024 dobijenih elektromagnetnim postupkom livenja. in Tehnika - Rudarstvo, geologija i metalurgija. 2008;59(1):1-4.
conv_76 .

Gulišija, Zvonko, Patarić, Aleksandra, Janjušević, Zoran, Jordović, Branka, "Mikrostruktura odlivaka Al legure 2024 dobijenih elektromagnetnim postupkom livenja" in Tehnika - Rudarstvo, geologija i metalurgija, 59, no. 1 (2008):1-4,
conv_76 .