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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); Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationInternational Journal of Plasticity
2014-04
Volume55Pages:80-93
ISSN0749-6419
AbstractLow 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.
KeywordCell Membrane Nanotubes Cell Interaction Microtubule Filopodia Molecular Dynamics
Subject AreaEngineering ; Materials Science ; Mechanics
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000332812200005
Funding OrganizationY.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.
DepartmentLNM微结构计算力学(筹)
Classification一类
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48767
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
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.
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