Influence of Dynamic Recrystallization on Tensile Properties of AZ31B Magnesium Alloy Sheet

被引：19
|
作者：
Hu, Li Juan [1 ]
Peng, Ying Hong [1 ]
Li, Da Yong [1 ]
Zhang, Shao Rui [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
来源：
MATERIALS AND MANUFACTURING PROCESSES | 2010年 / 25卷 / 08期
关键词：
Constitutive model; Dynamic recrystallization; Flow behaviors; Magnesium alloy; Microstructure; Tensile properties; HIGH-TEMPERATURE DEFORMATION; HOT-WORKING; PLASTIC-DEFORMATION; MICROSTRUCTURE; EVOLUTION; BEHAVIOR;
D O I：
10.1080/10426910903496805
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dynamic recrystallization (DRX) occurring in tensile deformation of AZ31B magnesium alloy sheet has been investigated. In particular, in order to predict the effect of DRX on tensile properties of AZ31B magnesium alloy sheet, a modified constitutive model is presented and used in the finite element method (FEM) model of the tension. Results from this analysis are compared with the experimental data for tensile tests. The results indicate that the modified DRX model can validly express the effect of DRX on tensile properties of AZ31B magnesium alloy sheet. The softening stage of flow stress simulated by this model can approach that of experiment considerably. In addition, the evolution of DRX grain is examined with increasing temperature. Furthermore, a comparison is made between calculated and tested DRX grain size.
引用
收藏
页码：880 / 887
页数：8
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