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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.50  No.8 (2009)  >  pp.1919-1923

MATERIALS TRANSACTIONS
<<Previous article Vol.50  No.8 (2009)   pp.1919 - 1923 Next article>>

Morphology and Crystallography of Sub-Blocks in Ultra-Low Carbon Lath Martensite Steel

S. Morito1), Y. Adachi2) and T. Ohba1)
1) Department of Materials Science and Engineering, Shimane University
2) Innovative Materials Engineering Laboratory, National Institute for Materials Science


The morphology and crystallography of sub-blocks in lath martensite were studied in an interstitial free steel. In each block the sub-blocks are classified into dominant and minor sub-blocks in terms of the volume fraction. The orientation relationship between the dominant and minor sub-blocks is [011]α′/10.5 degrees. Minor sub-blocks have a plate-like morphology and are connected to each other with the habit plane close to {111}γ, and their growth directions close to ⟨10\bar1⟩γ.


Keyword:
lath martensite, three-dimensional analysis, morphology, crystallography

Received: November 04, 2008
Accepted: May 07, 2009 , Published online: July 25, 2009
Copyright (c) 2009 The Japan Institute of Metals

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