Flow stress feature of novel Al-Zn-Mg-Cu alloy during hot compression deformation

被引：0

作者：

Li, Xiwu ^{[1
]}

Xiong, Baiqing ^{[1
]}

Zhang, Yongan ^{[1
]}

Hua, Cheng ^{[1
]}

Wang, Feng ^{[1
]}

Zhu, Baohong ^{[1
]}

Xiong, Yimin ^{[1
]}

机构：

[1] State Key Laboratory for Fabrication and Processing of Non-Ferrous Metals, General Research Institute for Non-Ferrous Metals, Beijing 100088, China

来源：

Xiyou Jinshu / Chinese Journal of Rare Metals | 2008年 / 32卷 / 05期

关键词：

Strain rate - Compression testing - Plastic flow - Zinc alloys - Zirconium alloys - Copper alloys - Magnesium alloys;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The flow stress feature of a novel Al-7.5Zn-1.6Mg-1.4Cu-0.12Zr alloy during hot deformation was investigated by isothermal compression tests using Gleeble-1500 system under the conditions of temperature at the range from 380 to 460C and strain rate in the from 0.001 to 0.1 s-1. TEM was employed to analyze the microstructures of the alloy. The results showed that the flow stress was controlled by both strain rate and deformation temperature. The flow stress decreases with increasing temperature and increases with a rise in strain rate. The mean sub-grain size decreased with increase of Zener-Hollomon parameter. The flow stress of this Al-Zn-Mg-Cu alloy during hot deformation could be represented by a Zener-Hollomon parameter.

引用

页码：552 / 557