CVM Calculation of the Solid-State Equilibria in the Fe-Co Phase Diagram
Solid -state phase equilibria in the Fe-Co system are investigated using the Cluster Variation Method (CVM) in the irregular tetrahedron approximation in the bcc lattice and in the regular tetrahedron approximation in the fcc lattice. Calculations are performed in the quaternary Fe+ Fe− Co+ Co− by considering both chemical and magnetic interactions. The A2/B2 order/disorder transition and the α/γ transition agree well with the experimental data in the literature. The composition dependence of the Curie temperatures for bcc and fcc alloys as predicted here are also presented.
KeywordsEntropy Zirconium Enthalpy Cobalt Tungsten
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