Exploring the interaction of alloying elements in modelling T 0,B s and M s temperatures

Abstract

Thermodynamic $T_0$ temperatures have been analysed for various Fe systems with additions of C, Mn, Si, Cr, Mo, Ni and Al. The findings indicate that the additivity rule is inadequate to accurately describe $T_0$ of ternary and higher order systems. To address this issue, a novel method accounting for the interaction of alloying elements was introduced and validated using 860 data points. The study also explored the interaction of alloying elements in modelling $B_s$ and $M_s$ temperatures, but no conclusive evidence was found due to high uncertainty in the experimental data. The models developed based on the additivity rule can accurately describe $B_s$ and $M_s$ for a wide range of alloying concentrations, demonstrating a significant improvement compared to benchmark models.