Effects of Sm and Zr Addition on the Microstructure and Mechanical Properties in Mg-Cu Alloys

摘要：

　　The effects of Sm and Zr amount on the properties of Mg-Cu-Sm-Zr alloys were systematically investigated.The results showed that the Mg99Cu alloy consist of α-Mg matrix and Mg2Cu phase.After the addition of Sm and Zr, it was confirmed that Sm and Zr change the structure and distribution of Mg2Cu phase.In the meantime, the CuZr2 and CuSm phases which make a major contribution to mechanical properties were observed in the Mg-Cu-Sm-Zr alloys.The addition of Sm and Zr can also greatly refine the grains.The strength continuously increased due to the increase of Sm and Zr content.The elongation first increased within the range of0-1.5%Sm 0-0.9%Zr, and the decreased.The alloys with 0.5wt%Sm and 1.9wt%Zr had the best combination of mechanical properties.

关键词： Mg-Cu-Sm-Zr alloys Sm content Zr content Microstructure Mechanical properties

作者: Zhi-chao Xu Zhong-xue Feng Jia-liang Dong

作者单位: Department of Material Science & Engineering, Kunming University of Science and Technology,Kunming 6 Research Center for Analysis and Measurement, Kunming University of Science and Technology,Kunming 6

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 88-92

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）