Effects of Y Content on the Microstructures and Mechanical Properties of Mg-5Zn-xY-0.6Zr Alloys

作     者：YIN Siqi ZHANG Zhiqiang 尹思奇;张志强;LIU Xuan;ZHU Zhenjia;BAO Lei;LE Qichi;CUI Jianzhong

作者机构：Key Lab of Electromagnetic Processing of Materials Ministry of Education College of Materials Science and Engineering Northeastern University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2019年第34卷第1期

页      面：138-144页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Funded by the National Key Research and Development Program of China(No.2016YFB0301101) the Liaoning Provincial Natural Science Foundation of China(No.2014028027) the National Basic Research Program of China(No.2013CB632203) 

主　　题：Mg-Zn-Y-Zr alloy indirect extrusion ternary phase mechanical property 

摘      要：Three as-cast and as-extruded Mg-5Zn-x Y-0.6Zr(x=5 wt%, 8 wt%, 11 wt%) alloys were prepared, and the effects of Y content on the microstructures and mechanical properties of the alloys were investigated. The results show that the investigated Mg-Zn-Y-Zr alloys mainly consist of a-Mg, X-Mg12 YZn and minor amount of W-Mg_3Y_2Zn_3 phases. The volume fraction of X-Mg_(12) YZn phase increases and that of W-Mg_3Y_2Zn_3 phase decreases with the rising of Y content in the alloys. The as-extruded Mg-5Zn-11Y-0.6Zr alloy owns the optimal ultimate tensile strength and yield strength of 429 and 351 MPa, respectively. Mg-5Zn-5Y-0.6Zr alloy owns the maximum elongation of 13.6%.