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Title:
Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation
Author: Fernandez A; Perez PMT; Wei YJ(魏宇杰); Jerusalem A
Source: International Journal of Plasticity
Issued Date: 2011
Volume: 27, Issue:11, Pages:1739-1757
Abstract: Lightweight magnesium alloys, such as AZ31, constitute alternative materials of interest for many industrial sectors such as the transport industry. For instance, reducing vehicle weight and thus fuel consumption can actively benefit the global efforts of the current environmental industry policies. To this end, several research groups are focusing their experimental efforts on the development of advanced Mg alloys. However, comparatively little computational work has been oriented towards the simulation of the micromechanisms underlying the deformation of these metals. Among them, the model developed by Staroselsky and Anand [Staroselsky, A., Anand, L, 2003. A constitutive model for HCP materials deforming by slip and twinning: application to magnesium alloy AZ31B. International Journal of Plasticity 19(10), 1843-1864] successfully captured some of the intrinsic features of deformation in Magnesium alloys. Nevertheless, some deformation micromechanisms, such as cross-hardening between slip and twin systems, have been either simplified or disregarded. In this work, we propose the development of a crystal plasticity continuum model aimed at fully describing the intrinsic deformation mechanisms between slip and twin systems. In order to calibrate and validate the proposed model, an experimental campaign consisting of a set of quasi-static compression tests at room temperature along the rolling and normal directions of a polycrystalline AZ31 rolled sheet, as well as an analysis of the crystallographic texture at different stages of deformation, has been carried out. The model is then exploited by investigating stress and strain fields, texture evolution, and slip and twin activities during deformation. The flexibility of the overall model is ultimately demonstrated by casting light on an experimental controversy on the role of the pyramidal slip < c + a > versus compression twinning in the late stage of polycrystalline deformation, and a failure criterion related to basal slip activity is proposed. (C) 2011 Elsevier Ltd. All rights reserved.
Keyword: Magnesium ; Continuum Model ; Crystal Plasticity ; High-Temperature Deformation ; Independent Crystal Plasticity ; Finite-Element-Method ; Magnesium Alloy ; Texture Evolution ; Single-Crystal ; Hcp Metals ; Mechanical-Behavior ; Strain Rates ; Grain-Size
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Jerusalem, A (reprint author), IMDEA Mat Inst, Calle Prof Aranguren S-N, Madrid 28040, Spain
Correspondent Email: ana.fernandez@imdea.org; teresa.perez.prado@imdea.org; yujie_wei@lnm.imech.ac.cn; antoine.jerusalem@imdea.org
DOI: 10.1016/j.ijplas.2011.05.002
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
WOS Subject Extended: Engineering ; Materials Science ; Mechanics
WOS Keyword Plus: HIGH-TEMPERATURE DEFORMATION ; INDEPENDENT CRYSTAL PLASTICITY ; FINITE-ELEMENT-METHOD ; MAGNESIUM ALLOY ; TEXTURE EVOLUTION ; SINGLE-CRYSTAL ; HCP METALS ; MECHANICAL-BEHAVIOR ; STRAIN RATES ; GRAIN-SIZE
WOS ID: WOS:000295065700002
ISSN: 0749-6419
Rank: [Fernandez, Ana; Perez Prado, Maria Teresa; Jerusalem, Antoine] IMDEA Mat Inst, Madrid 28040, Spain; [Wei, Yujie] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
Subject: Engineering; Materials Science; Mechanics
Department: LNM微结构计算力学(筹)
Classification: 一类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/44899
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
Fernandez A,Perez PMT,Wei YJ,et al. Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation[J]. International Journal of Plasticity,2011-01-01,27(11):1739-1757.
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