Journal
METALS AND MATERIALS INTERNATIONAL
Volume 10, Issue 4, Pages 321-326Publisher
KOREAN INST METALS MATERIALS
DOI: 10.1007/BF03185980
Keywords
phase-field method; phase transformation; phase decomposition; spinodal decomposition; pattern formation; diffusion equation
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Phase decomposition during isothermal aging of a Fe-Cr-Co ternary alloy under an external magnetic field is simulated based on the phase-field method. In this simulation, since the Gibbs energy available from the thermodynamic CALPHAD database of the equilibrium phase diagram is employed as a chemical free energy, the present calculation provides the quantitative microstructure changes directly linked to the phase diagram. The simulated microstructure evolution demonstrates that the lamella like microstructure elongated along the external magnetic field is evolved with the progress of aging. The morphological and temporal developments of the simulated microstructures are in good agreement with experimental results that have been obtained for this alloy system.
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