Computer Calculation of Phase Diagrams of Co-Cr and Co-Mn Systems

Thermodynamic analysis and synthesis of phase diagrams of Co-Cr and Co-Mn systems were performed by computer calculation. Special cares were taken to the fact that the magnetic transition of Co has a substantial effect on phase equilibria. The parameters for describing the free energy of individual phases were evaluated as relatively simple functions of both temperature and composition. Calculated phase diagrams as well as thermodynamic properties are in good agreement with the experimental ones.