Study on mechanical behavior for warm extrusion of AZ61 magnesium alloy

摘要：

Thermal compression tests of AZ61 magnesium alloy was performed at deformation temperature 150-400℃ and strain rates ranged from 0.01s-1 to 10s-1, and the microstructure were observed for deformation specimens. The result shows that dynamic recrystallization (DRX) was happened under the center warm deformation condition for AZ61 alloy. The values of stress peak decrease when the deformation temperature increase, the grain size grows up at the same time. On the other hand, the critical strain increase and the grain size get smaller with the strain ratio increasing. Therefore temperature and strain ratio can make a great effect on the microstructure and mechanical properties of AZ61 alloy, but temperature is a more important factor.

关键词： AZ61 Magnesium alloy Warm extrusion Mechanical behavior

作者: Xing ZHANG Zhimin ZHANG Baocheng Li

作者单位: School of Materials Science and Engineering, North University of China, Taiyuan Shanxi 030051, China Engineering Center for Precision Forming of Shanxi Province, Taiyuan Shanxi 030051, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）