Numerical simulation of dynamic strain-induced austenite-ferrite transformation in a low carbon steel

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	Numerical simulation of dynamic strain-induced austenite-ferrite transformation in a low carbon steel
	C. W. Zheng ; N. M. Xiao ; L. H. Hao ; D. Z. Li ; Y. Y. Li
刊名	Acta Materialia
	2009
卷号	57 期号:10 页码:2956-2968
关键词	Dynamic strain-induced transformation Ferrite refinement Cellular automaton Mesoscopic modeling Low carbon steel cellular-automaton method deformation-induced ferrite ultrafine ferrite phase-transformations hot deformation cooling rate grain-size recrystallization nucleation growth
ISSN号	1359-6454
中文摘要	A modified cellular automaton modeling has been performed to investigate the dynamic strain-induced transformation (DSIT) from austenite (gamma) to ferrite (alpha) in a low carbon steel. In this modeling, the gamma-alpha transformation, ferrite dynamic recrystallization and the hot deformation were simulated simultaneously. The simulation provides an insight into the mechanism of the ferrite refinement during the DSIT. It is found that the refinement of ferrite grains derived from DSIT was the result of the increasing ferrite nuclei density by the "unsaturated" nucleation, the limited ferrite growth and the ferrite dynamic recrystallization. The effects of prior austenite grain size and strain rate on the microstructural evolution of the DSIT ferrite and the characteristics of the resultant microstructure are also discussed. Crown Copyright (C) 2009 Published by Elsevier Ltd. on behalf of Acta Materialia. All rights reserved.
原文出处	://WOS:000266518600009
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32609]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	C. W. Zheng,N. M. Xiao,L. H. Hao,et al. Numerical simulation of dynamic strain-induced austenite-ferrite transformation in a low carbon steel[J]. Acta Materialia,2009,57(10):2956-2968.
APA	C. W. Zheng,N. M. Xiao,L. H. Hao,D. Z. Li,&Y. Y. Li.(2009).Numerical simulation of dynamic strain-induced austenite-ferrite transformation in a low carbon steel.Acta Materialia,57(10),2956-2968.
MLA	C. W. Zheng,et al."Numerical simulation of dynamic strain-induced austenite-ferrite transformation in a low carbon steel".Acta Materialia 57.10(2009):2956-2968.