Flow stress and microstructure of AZ91 magnesium alloy in hot compression deformation

被引：0

作者：

Wang, Zhi-Xiang ^{[1
]}

Jin, Shan ^{[1
]}

Chen, Wen-Jiang ^{[1
]}

Wu, Chao-Sheng ^{[1
]}

Liu, Feng ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou , China

来源：

Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | 2014年 / 35卷 / 10期

关键词：

Magnesium alloys - Grain size and shape - Crystal microstructure - Strain rate - Dynamic recrystallization;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Hot compression deformation of AZ91 magnesium alloy was performed on Gleeble-1500 under conditions of strain rate of 0.001-1 s-1 and deformation temperature of 250-400, the flow stresses and microstructure in different deformation conditions were investigated. The results show that dynamic recrystallization is observed during hot deformation, the flow stresses and microstructure of AZ91 magnesium alloy are significantly affected by deformation temperature and strain rate, the flow stress decreases and grain size increases with the deformation temperature increasing and strain rate decreasing. And the degree of recrystallization is processed more completely, grain size of dynamic recrystallization is approximately described to exponential decline form with natural logarithm of Zener-Hollomon parameter.

引用

页码：17 / 22