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

IMECH-IR > 非线性力学国家重点实验室

	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); Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	International Journal of Plasticity
	2014-04
卷号	55 页码:80-93
ISSN	0749-6419
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.
关键词	Cell Membrane Nanotubes Cell Interaction Microtubule Filopodia Molecular Dynamics
学科领域	Engineering ; Materials Science ; Mechanics
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000332812200005
项目资助者	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.
课题组名称	LNM微结构计算力学（筹）
论文分区	一类
引用统计	被引频次：57[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48767
专题	非线性力学国家重点实验室
通讯作者	Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Liu Y,Wei YJ,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,&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.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-J2014-063.pdf（4093KB）			开放获取	--	浏览下载