Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels

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	Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels
	D. Z. Li; N. M. Xiao; Y. J. Lan; C. W. Zheng; Y. Y. Li
	2007
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	55 期号:18 页码:6234-6249
摘要	The mesoscale deterministic cellular automaton (CA) method and probabilistic Q-state Potts-based Monte Carlo (MC) model have been adopted to investigate independently the individual growth behavior of ferrite grain during the austenite (gamma)-ferrite (alpha) transformation. In these models, the gamma-alpha phase transformation and ferrite grain coarsening induced by alpha/alpha grain boundary migration could be simulated simultaneously. The simulations demonstrated that both the hard impingement (ferrite grain coarsening) and the soft impingement (overlapping carbon concentration field) have a great influence on the individual ferrite growth behavior. Generally, ferrite grains displayed six modes of growth behavior: parabolic growth, delayed nucleation and growth, temporary shrinkage, partial shrinkage, complete shrinkage and accelerated growth in the transformation. Some modes have been observed before by the synchrotron X-ray diffraction experiment. The mesoscopic simulation provides an alternative tool for investigating both the individual grain growth behavior and the overall transformation behavior simultaneously during transformation. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china. univ sheffield, dept engn mech, immpetus, sheffield s1 3jd, s yorkshire, england.;li, dz (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;dzli@imr.ac.cn
关键词	Grain Growth Coarsening Austenite Ferrite Phase Transformation Fe-c Alloys Phase-transformations Microstructure Evolution Computer-simulation Cooling Rate Nucleation Solidification Deformation Kinetics Recrystallization
URL	查看原文
WOS记录号	WOS:000250888800021
引用统计	被引频次：40[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33625
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. Z. Li,N. M. Xiao,Y. J. Lan,et al. Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels[J]. Acta Materialia,2007,55(18):6234-6249.
APA	D. Z. Li,N. M. Xiao,Y. J. Lan,C. W. Zheng,&Y. Y. Li.(2007).Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels.Acta Materialia,55(18),6234-6249.
MLA	D. Z. Li,et al."Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels".Acta Materialia 55.18(2007):6234-6249.