Influence of magnetic field on the kinetics of proeutectoid ferrite transformation in iron alloys

Authors
Enomoto, M Guo, H Tazuke, Y Abe, YR Shimotomai, M
Citation
M. Enomoto et al., Influence of magnetic field on the kinetics of proeutectoid ferrite transformation in iron alloys, MET MAT T A, 32(3), 2001, pp. 445-453
Citations number
29
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science",Metallurgy
Journal title
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN journal
10735623 → ACNP
Volume
32
Issue
3
Year of publication
2001
Pages
445 - 453
Database
ISI
SICI code
1073-5623(200103)32:3<445:IOMFOT>2.0.ZU;2-Y
Abstract
The kinetics of proeutectoid ferrite transformation in Fe-C base alloys in a strong magnetic field (7.5 T) were studied. The transformation kinetics w ere accelerated at temperatures not only below but also significantly above the Curie temperature. The free energy and equilibrium ferrite/austenite p hase boundaries in applied magnetic fields were calculated using the report ed experimental magnetic susceptibility and Weiss molecular field theory. T he persistence of magnetic field effects above the Curie temperature can be attributed to the rapidly diminishing difference in relative stability bet ween ferrite and austenite toward the Ae(3) temperature of iron.