Thermodynamic, surface and viscous properties of ternary Al–Fe–Mn alloy using theoretical modellings

Abstract

ABSTRACT Thermo-physical properties of ternary Al-Fe-Mn alloys were studied using various theoretical models. The excess free energy of mixing of binary sub-systems of the ternary alloy was computed using an exponentially optimised interaction parameter in the framework of the R-K polynomial. The excess free energy of mixing of the ternary alloy was computed using different theoretical models. The surface properties of the binary and ternary alloys were calculated using Butler equation. The values of surface tensions so obtained were then used to calculate the excess surface tensions of the binary sub-systems. The optimised parameters for the excess surface tension of the binary sub-systems were then used to calculate the surface tension of the ternary alloy in the framework of different modelling equations. The viscosities of the binary sub-systems were computed using the Kaptay, Kozlov-Romanov-Petrov and Moelwyn-Hughes models and the viscosity of ternary alloys was obtained using the Chou, Toop, Kohler and Kaptay models.