Coupled simulation of the influence of austenite deformation on the subsequent isothermal austenite-ferrite transformation

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	Coupled simulation of the influence of austenite deformation on the subsequent isothermal austenite-ferrite transformation
	N. M. Xiao; M. M. Tong; Y. J. Lan; D. Z. Li; Y. Y. Li
	2006
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	54 期号:5 页码:1265-1278
摘要	The influence of austenite deformation on the subsequent isothermal austenite-ferrite transformation in binary Fe-C alloys is simulated by coupling a Q-state Potts Monte Carlo (MC) method with a crystal plasticity finite element method (CPFEM). The initial deformed microstructure characteristics induced by the plane strain hot compression are simulated using the CPFEM. Based on a linear interpolation approach, these characteristics, which include the stored energy and the orientation, are mapped onto a regular hexagonal lattice as the initial parameters of the MC simulation. The simulation results reveal that the plastic deformation increases the equilibrium ferrite volume fraction and accelerates the transformation kinetics. The regions with high stored energy at austenite grain interiors and boundaries and the extended austenite grain boundary area induced by plastic deformation can increase the effective ferrite nucleation sites. The effects of plastic deformation on the long-range diffusion of carbon atoms in austenite and short-range diffusion of iron atoms across the austenite/ferrite interface are investigated. This simulation technique provides a novel way for investigating the austenite-ferrite transformation under deformation conditions on a mesoscale. (c) 2005 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.;li, dz (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;dzli@imr.ac.cn
关键词	Hot Deformation Phase Transformation Monte Carlo Crystal Plasticity Finite Element Mesoscale Simulation Cellular-automaton Method Work-hardened Austenite Finite-element Model Crystal Plasticity Deformed Austenite Microstructural Evolution Static Recrystallization Decomposition Kinetics Strain
URL	查看原文
WOS记录号	WOS:000235765300008
引用统计	被引频次：70[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/321006/34599
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	N. M. Xiao,M. M. Tong,Y. J. Lan,et al. Coupled simulation of the influence of austenite deformation on the subsequent isothermal austenite-ferrite transformation[J]. Acta Materialia,2006,54(5):1265-1278.
APA	N. M. Xiao,M. M. Tong,Y. J. Lan,D. Z. Li,&Y. Y. Li.(2006).Coupled simulation of the influence of austenite deformation on the subsequent isothermal austenite-ferrite transformation.Acta Materialia,54(5),1265-1278.
MLA	N. M. Xiao,et al."Coupled simulation of the influence of austenite deformation on the subsequent isothermal austenite-ferrite transformation".Acta Materialia 54.5(2006):1265-1278.