Research on the Microstructures and Mechanical Properties of Annealed Cold Upsetting AZ31 Magnesium Alloy

摘要：

The microstructures and mechanical properties of cold upsetting magnesium alloys were investigated upon anneal under different conditions. The results show that a large amount of twins were observed in the original grains of cold upsetting AZ31 magnesium alloys. The twins disappeared gradually and recrystal grains formed after anneal. The volume fraction of the recrystal grains increases as the strain of samples rises. Recrystal grain size grows large with the elevated annealing temperature. Recrystal grain size reduces at first and then grows as the annealing time is prolonged. In addition, compared with as-cast magnesium alloys, the yield strength of cold upsetting samples increase apparently due to grain refinement after anneals.

关键词： AZ31 Magnesium Alloy Annealing Recrystallization

作者: Tianmo LIU Weihui HU Qing LIU

作者单位: National Engineering Research Center for Magnesium Alloys,Chongqing University, Chongqing, 400044, China College of Materials Science and Engineering, Chongqing University, Chongqing, 400045, China

会议类型: 国际会议

会议名称: 2008年中美材料国际研讨会

会议地点: 重庆

会议语种:英文

页码: 826-830

在线出版日期: 2008-06-09（万方平台首次上网日期，不代表论文的发表时间）