Liquidus projection and thermodynamic modeling of the Cr-Fe-Nb ternary system

A liquidus projection and a thermodynamic assessment of the Cr-Fe-Nb ternary system are proposed for the first time. The construction of the liquidus projection was obtained through evaluation of the microstructure of as cast samples and high temperature DTA measurements of equilibrated samples. Thermodynamic modeling was then done via the Calphad method based on DFT calculation for the description of the energy behavior of the phases and experimental evidence.