Experimental study and thermodynamic remodeling of the Bi-Cu-Ni system

Abstract

Phase equilibria in the Bi-Cu-Ni ternary system have been studied using differential thermal analysis (DTA) as well as by using the calculation of the phase diagram (CALPHAD) method. Literature experimental phase equilibria data and DTA results from this study were used for thermodynamic modeling of the Bi-Cu-Ni ternary system. Isothermal sections at 300, 400, and 500 degrees C, vertical sections from bismuth corner with molar ratio Cu:Ni = 1/3, 1/1 and 3/1 and vertical section at 40 at.% Cu were calculated and compared with corresponding experimental results. Reasonable agreement between the calculated and experimental data was observed in all cases.