Warm deformation behavior of hot-rolled AZ31 Mg alloy

被引：176

作者：

Yin, DL ^{[1
]}

Zhang, KF ^{[1
]}

Wang, GF ^{[1
]}

Han, WB ^{[1
]}

机构：

[1] Harbin Inst Technol, Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 392卷 / 1-2期

关键词：

AZ31 magnesium alloy; warm deformation; twinning; dynamic recrystallization;

D O I：

10.1016/j.msea.2004.09.039

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Uniaxial tensile test was employed to evaluate the warm deformation properties of hot-rolled AZ31 Mg alloy at a temperature range of 50-200degreesC and a strain rate range of 1.4 x 10(-3) s(-1) -1.4 x 10(-1) s(-1). The dynamic recrystallization (DRX) and twinning during the warm deformation were observed by optical microscopy (OM) and transmission electronic microscopy (TEM). It is shown that twinning characterized by a compound mode with differently oriented twins intersecting each other is the dominant deformation mechanism at low temperatures and initial deformation stage. The distortion energy accumulated by twinning is the reason for the occurrence of DRX. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：320 / 325

页数：6

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