Double tensile twinning in a Mg-8Al-0.5Zn alloy

被引：50

作者：

Jain, J. ^{[1
]}

Zou, J. ^{[1
,2
,3
]}

Sinclair, C. W. ^{[1
]}

Poole, W. J. ^{[1
]}

机构：

[1] Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada

[2] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200030, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China

来源：

JOURNAL OF MICROSCOPY | 2011年 / 242卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

AZ80; double twinning; EBSD; magnesium alloys; TEM; twinning; MAGNESIUM ALLOY; CONTRACTION TWINS; DEFORMATION; MODES; DUCTILITY; FRACTURE;

D O I：

10.1111/j.1365-2818.2010.03434.x

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

P>The presence of deformation twinning in magnesium introduces significant challenges for predicting the bulk response of the material. In this work, we present results showing the presence of tensile twins formed within pre-existing tensile twins in samples deformed in compression at 77 K. Such double twins mirror the observation of double compression-tension twins previously observed. It is argued that the observed double twinning occurs due to the difficulty of non-basal slip at the low test temperature.

引用

页码：26 / 36

页数：11

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