Experimental Investigation of Phase Relations and Thermodynamic Modelling of the Fe-Mn-Zr System

Abstract Phase equilibria in the Fe-Mn-Zr system have been studied experimentally using SEM/EDX methods, EBSD and powder x-ray diffraction. Quasi binary section of ZrFe 2 -ZrMn 2 has been constructed. Invariant reactions were studied using differential thermal analysis followed by SEM/EDX. Using obtained experimental results at 1073 K, ternary isothermal section has been constructed. A self-consistent thermodynamic description of the Fe-Mn-Zr system has been developed using the CALPHAD method based on the new experimental information.