A polycrystal based numerical investigation on the temperature dependence of slip resistance and texture evolution in magnesium alloy AZ31B

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	A polycrystal based numerical investigation on the temperature dependence of slip resistance and texture evolution in magnesium alloy AZ31B
	Liu Y(刘垚); Wei YJ(魏宇杰)
刊名	International Journal of Plasticity
	2014-04
通讯作者邮箱	yujie_wei@lnm.imech.ac.cn
卷号	55 页码:80-93
关键词	Cell membrane nanotubes cell interaction microtubule filopodia molecular dynamics
ISSN号	0749-6419
通讯作者	Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
产权排序	[Liu, Yao; Wei, Yujie] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	Low thermoplastic formability is a key factor limiting the usage of magnesium alloys, which otherwise can have broad application in automotive industry for their competitive strength to density ratio. Combining with experimental calibration and validation, we report a systematic numerical investigation about the plastic deformation of magnesium alloy AZ31B at different temperatures and subjected to different boundary conditions. By employing 3D Voronoi grains based microstructure and the crystal plasticity constitutive model developed by Staroselsky and Anand (2003), which accounts for both dislocation slip and deformation twinning in polycrystalline magnesium, we estimate the dependence of critical resolved shear stresses (CRSS) of different slip/twinning systems on temperature. We further obtain the fractional plastic strains contributed by individual slip/twinning systems at different loading conditions. Grain level deformation analysis indicates that there exists significant stress and plasticity inhomogeneity among grains. (C) 2013 Elsevier Ltd. All rights reserved.
学科主题	Engineering; Materials Science; Mechanics
分类号	一类
收录类别	SCI ; EI
资助信息	Y.W. acknowledges support from the Chinese Academy of Sciences (KJCX2-EW-L03), MOST 973 of China (Nos. 2012CB937500, 2011CB711103), and NSFC (11021262). We are very grateful to Professor Lallit Anand at MIT for fruitful discussions.
原文出处	http://dx.doi.org/10.1016/j.ijplas.2013.09.011
语种	英语
WOS记录号	WOS:000332812200005
公开日期	2014-05-09
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/48767]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Liu Y,Wei YJ. A polycrystal based numerical investigation on the temperature dependence of slip resistance and texture evolution in magnesium alloy AZ31B[J]. International Journal of Plasticity,2014,55:80-93.
APA	Liu Y,&Wei YJ.(2014).A polycrystal based numerical investigation on the temperature dependence of slip resistance and texture evolution in magnesium alloy AZ31B.International Journal of Plasticity,55,80-93.
MLA	Liu Y,et al."A polycrystal based numerical investigation on the temperature dependence of slip resistance and texture evolution in magnesium alloy AZ31B".International Journal of Plasticity 55(2014):80-93.