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Effect of a magnetic field on phase transformation of steel

Published online by Cambridge University Press:  31 January 2011

W. Liu ,
D. R. Ou ,
H. H. Zhou ,
G. Y. Tang  and
F. Wu
W. Liu
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
D. R. Ou
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
H. H. Zhou
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
G. Y. Tang
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
F. Wu
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Abstract

Electromagnetic theory is used to characterize the magnetization processes in metals and alloys. The analysis shows that the free energy of a phase transformation may be reduced or enhanced by the magnetic field depending on the ratio of the permeability of the old and new phases. This means that the magnetic field can either stimulate or inhibit the nucleation process. The theory is in accord with the experimental results by others and us.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 8 , August 2001 , pp. 2280 - 2282
Copyright
Copyright © Materials Research Society 2001

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References

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