Polycrystal modeling of tensile twinning in a Mg alloy during cyclic loading

被引：14

作者：

Gu, C. F. ^{[2
]}

Toth, L. S. ^{[1
,3
]}

机构：

[1] Univ Lorraine, CNRS, UMR 7239, LEM3, F-57045 Metz 1, France

[2] Monash Univ, Dept Mat Engn, ARC Ctr Excellence Design Light Met, Clayton, Vic 3800, Australia

[3] Univ Lorraine, Lab Excellence Design Alloy Met Low Mass Struct D, F-57045 Metz 1, France

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 7-8期

关键词：

Cyclic loading; {10-(1)over-bar-2} tensile twinning; De-twinning; AZ31; alloy; Polycrystal modeling; MAGNESIUM ALLOY; TEXTURE EVOLUTION; BEHAVIOR; PLASTICITY;

D O I：

10.1016/j.scriptamat.2012.07.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Introducing a volume transfer scheme to handle twinning, the elasto-viscoplastic Taylor-Lin model was employed for the first time to investigate the effect of tensile twinning on the low cyclic deformation behavior of a strong basal textured Mg alloy at room temperature. {1 0 (1) over bar 2} tensile twinning was predominately activated together with massive de-twinning. The numerical simulation reproduced the experimental cyclic stress-strain curve and twinning activity in good agreement with experiments obtained by orientation mapping and suggested Taylor deformation mode. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：673 / 676

页数：4