Microstructure and Tensile Properties of Mg-4Zn-2Sn-2Al Alloy

摘要：

　　The microstructures and tensile properties of as-cast,solution-treated and aged Mg-4Zn-2Sn-2Al(wt.%) alloy have been investigated.The microstructure of the as-cast alloy consists of α-Mg,Mg2Sn and Mg32(Al,Zn)49 phases.The yield tensile strength and the ultimate tensile strength of the as-cast alloy are 87.7 MPa and 241.3 MPa,respectively,and the elongation reaches to 18.8% showing excellent ductility.After solution treatment,all of the Mg32(Al,Zn)49 phase and the majority of Mg2Sn particles have dissolved into the matrix.During aging process,Mg2Sn phase precipitates from the α-Mg supersaturated solid solution.With the precipitation strengthening of Mg2Sn phase,the yield tensile strength and the ultimate tensile strength of the alloy increase to 112.5 MPa and 280.4 MPa,respectively,while,the elongation decreases to 12%.

关键词： Magnesium alloy Mg-4Zn-2Sn-2Al Microstructure Tensile properties

作者: Dongqing Zhao Xuguang Dong Xinen Zhang Anjiang Gao Jixue Zhou Yuansheng Yang

作者单位: Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;New Materials Resea Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China New Materials Research Institute of Shandong Academy of Sciences, Jinan 250014, China Conglin Group,Yantai 265706, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 398-403

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）