Compression Deformation Behavior of AZ91D Magnesium Alloy at Elevated Temperature

摘要：

　　Hot compression tests of AZ91D magnesium alloy were performed on Gleeblel500ranging from 0.001 to t s-1 and deformation temperature ranging from 200 to 400℃.The results show that flow stress is dependent on deformation temperature and strain rates.When strain rate is a constant,flow stress decreases with the increasing deformation temperature.Meanwhile,as deformation temperature is a constant,flow stress increases with the increase of strain rate,which can be demonstrated by a Zener-hollomon parameter in the hyperbolic-sine-type equation during hot compression deformation.The hot deformation activation energy is 176.01kJ/mol and the stress exponent is 7.85 during hot compression deformation of AZ9lD magnesium alloy.

关键词： Magnesium alloy Hot compression deformation Deformation activation energy

作者: CHAI Yuesheng CHEN Yong-zhe LIU Wen-feng SUN Gang

作者单位: Shanxi Magnesium and Magnesium alloy Engineer Technology Research Center;School of Materials Scienceand Engineering, Taiyuan university of science and technology Taiyuan Shanxi China 030024

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 914-919

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）