Article ID Journal Published Year Pages File Type
1559096 Calphad 2011 6 Pages PDF
Abstract

The calculation model of the diffusion coefficient under an external magnetic field was presented. The self-diffusion coefficient in the αFe (bcc) phase and the diffusion coefficients of Ni and Co in the αFe phase were calculated. The calculated results indicate that the diffusion coefficient decreases with the decreasing of temperature and increasing of external magnetic field intensity. The kinetics of the γFe (fcc) →αFe (bcc) phase transformation under an external magnetic field in pure Fe and Fe-1 at. % C alloy were also studied. It is found that grain refinement under an external magnetic field is caused by the increasing of nucleation rate and growth rate as well as the short transformation time.

Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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