Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution
Autori
Marković, SnežanaRadojković, Bojana
Jegdić, Bore
Jovanović, Aleksandar
Stojanović, Jovica
Trumić, Milan
Manojlović, Vaso
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sw...eep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements.
Ključne reči:
Low-alloy steel / Stainless iron / Electrochemical corrosion / LPR / EIS / LSV / seawaterIzvor:
Zastita Materijala, 2024, 65, 1, 45-53Izdavač:
- Belgrade : Engineering Society for Corrosion
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200026 (Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju - IHTM) (RS-MESTD-inst-2020-200026)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (RS-MESTD-inst-2020-200135)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200023 (Institut za tehnologiju nuklearnih i drugih mineralnih sirovina - ITNMS, Beograd) (RS-MESTD-inst-2020-200023)
Institucija/grupa
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Marković, Snežana AU - Radojković, Bojana AU - Jegdić, Bore AU - Jovanović, Aleksandar AU - Stojanović, Jovica AU - Trumić, Milan AU - Manojlović, Vaso PY - 2024 UR - https://ritnms.itnms.ac.rs/handle/123456789/1240 AB - The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sweep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements. PB - Belgrade : Engineering Society for Corrosion T2 - Zastita Materijala T1 - Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution EP - 53 IS - 1 SP - 45 VL - 65 DO - 10.62638/ZasMat998 ER -
@article{ author = "Marković, Snežana and Radojković, Bojana and Jegdić, Bore and Jovanović, Aleksandar and Stojanović, Jovica and Trumić, Milan and Manojlović, Vaso", year = "2024", abstract = "The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sweep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements.", publisher = "Belgrade : Engineering Society for Corrosion", journal = "Zastita Materijala", title = "Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution", pages = "53-45", number = "1", volume = "65", doi = "10.62638/ZasMat998" }
Marković, S., Radojković, B., Jegdić, B., Jovanović, A., Stojanović, J., Trumić, M.,& Manojlović, V.. (2024). Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution. in Zastita Materijala Belgrade : Engineering Society for Corrosion., 65(1), 45-53. https://doi.org/10.62638/ZasMat998
Marković S, Radojković B, Jegdić B, Jovanović A, Stojanović J, Trumić M, Manojlović V. Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution. in Zastita Materijala. 2024;65(1):45-53. doi:10.62638/ZasMat998 .
Marković, Snežana, Radojković, Bojana, Jegdić, Bore, Jovanović, Aleksandar, Stojanović, Jovica, Trumić, Milan, Manojlović, Vaso, "Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution" in Zastita Materijala, 65, no. 1 (2024):45-53, https://doi.org/10.62638/ZasMat998 . .