MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Effects of Magnetic Field and Prior Austenite Grain Size on the Structure Formed by Reverse Transformation from Lath Martensite to Austenite in an Fe-0.4C Alloy
Hideyuki OhtsukaXin Jiang HaoHitoshi Wada
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2003 Volume 44 Issue 12 Pages 2529-2531

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Abstract

Effects of magnetic field strength and prior austenite grain size on the microstructure formed by the reverse transformation from lath martensite to austenite have been investigated in Fe-0.4C alloy. The degree of elongation of reverse-transformed austenite increases with increasing applied magnetic field, which is a similar result with that for austenite to ferrite transformation. However, well-elongated austenite is formed not only in small prior austenite grains but also in relatively large prior austenite grains, which is different from the case of austenite to ferrite transformation.

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© 2003 The Japan Institute of Metals and Materials
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