Effects of Sc and Mn on microstructures and mechanical properties of Mg-Gd alloy

摘要：

Two alloys of Mg-12.4Gd and Mg-12.5Gd-0.8Sc-1.4Mn were prepared.Hot extrusion and T5 heat treatment were conducted,and then the mechanical properties of the two alloys were tested at room and high temperatures.The effects of Sc,Mn on the microstructures of Mg-12.4Gd were investigated by optical microscopy,scanning electron microscopy and transmission electron microscopy.The results demonstrate that after hot-extrusion the alloying with Sc,Mn can efficaciously refine the grains of Mg-12.4Gd alloy; and increase the elongation at room and high temperatures after T5 heat treatment.But the strength at high temperature is not obviously improved.

关键词： Mg-Gd-Sc-Mn alloy hot-extrusion microstructures mechanical properties

作者: ZHANG Xiao-juan YI Dan-qing FANG Xi-ya WANG Bin XIAO Lai-rong

作者单位: School of Materials Science and Engineering,Central South University,Changsha 410083,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）