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Twinning and the ductility of magnesium alloys Part I: "Tension" twins

被引：1184
作者：
Barnett, M. R. [1 ]
机构：
[1] Deakin Univ, Fac Sci & Technol, Ctr Mat & Fibre Innovat, ARC Ctr Excellence Design Light Met, Geelong, Vic 3217, Australia
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 464卷 / 1-2期
关键词：
tensile test; ductility; work softening; twinning; ROOM-TEMPERATURE; SINGLE-CRYSTALS; PRISMATIC SLIP; DEFORMATION; BEHAVIOR; STRESS; METALS; MG; MECHANISMS; EVOLUTION;
D O I：
10.1016/j.msea.2006.12.037
中图分类号：
TB3 [工程材料学];
学科分类号：
082905 [生物质能源与材料];
摘要：
Magnesium and its alloys do not in general undergo the same extended range of plasticity as their competitor structural metals. The present work is part I of a study that examines some of the roles deformation twinning might play in the phenomenon. A series of tensile test results are reported for the common wrought alloy AZ31. These data are employed in conjunction with a simple constitutive model to argue that {10 (1) over bar2} twinning (which gives extension along the c-axis) can increase the uniform elongation in tensile tests. This effect appears to be similar to that seen in Ti, Zr and Cu-Si and in the so called TWIP phenomenon in steel. (c) 2006 Elsevier B.V. All rights reserved.
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页码：1 / 7
页数：7
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