Effect of Semi-solid Forming on Microstructure Evolution and Mechanical Properties of AZ65 Magnesium alloy

摘要：

　　The application of some semisofid forming magnesium alloys are restricted due to their weak mechanical properties.The semisolid thixo forming was used to improve the mechanical proper ties of magnesium alloy.The semisolid microstruc ture evolution of AZ65 magnesium alloy was investi gated by means of OM, SEM and EDS analysis.The results showed that during heat treatment, the residual Mg17 Al12 + Mg32 (Al, Zn)49 phases at the grain boundary were dissolved first, then with the further increasing of temperature, the residual α-Mg phases melted and separated into the sman lump , then changed into spheroidal grains gradually.The mechanical properties of as-cast sample and semisolid thixoforming were compared, the highest value was 227MPa, which was obtained from the semisolid thixoforming.

关键词： AZ65 magnesium alloy semi solid thixo-forming microstructure evolution mechanical properties

作者: Zheng Lv Jiandong Xing Shengqiang Ma Yimin Gao

作者单位: State Key Laboratory for Mechanical Behavior of Materials,School of Materials Science and Engineering,Xi an Jiaotong University,Xi an 710049,Shaanxi Province,P.R.China

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: 135-139

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）