The Study of Hot Deformation Behavior and Microstructure of AZ31-1Sm Alloy Compression at Elevated Temperatures

摘要：

　　The hot deformation behavior of AZ31-1Sm alloy and its microstructure evolution were investigated by isothermal axisymmetric hot compression tests at temperatures ranging from 300℃ to 450℃ and strain rates from 0.01s-1 to 1s -1.The result shown that the steady flow stress in creases with increasing the strain rate or decreasing the deformation temperature, which can be de scribed by a hyperbolic-sine constitutive equation with the deformation activation energy of 160.8 K J/tool.AZ31-1Sm ahoy is easy to promote the dy namic recrystallization (DRX).The tendency of dy namic recrystallization enhances at high deformation temperatures and low strain rates.Recrystallization grains size increase with the deformation tempera ture increasing or strain rate decreasing.

关键词： hot deformation microstructure hyperbolic-sine constitutive equation

作者: Jing XU Zheng-hua HUANG Wen-jun QI Kai-hong ZHENG Chao-xing LI Nan ZHOU

作者单位: Guangzhou Research Institute of Nonferrous Metals,Guangzhou 510650

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 89-93

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）