ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Effect of Austenite Grain Size on the Morphology and Crystallography of Lath Martensite in Low Carbon Steels
S. MORITOH. SAITOT. OGAWAT. FURUHARAT. MAKI
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2005 年 45 巻 1 号 p. 91-94

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The crystallography, microstructure and mechanical property of as-quenched martensite of Fe-0.2C-Mn(-V) alloys of which the prior austenite grain sizes are 370-2 μm were studied. The prior austenite grain, whose size is larger than 28 μm, is divided by several packets. Those packets are subdivided by blocks containing sub-blocks, each of which corresponds to the Kurdjumov-Sachs variant. When the prior austenite grain size is about 2 μm, one packet tends to grow predominantly. Each packet is divided by blocks containing sub-blocks.

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© 2005 by The Iron and Steel Institute of Japan
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