Effect of 1% Ce Addition on Microstructures and Mechanical Properties of As-cast Mg-3.8Zn-2.2Ca (wt.%) Magnesium Alloy

摘要：

In this paper, the effect of adding 1.0 wt.％ Ce on the as-cast microstructure and mechanical properties of the Mg-3.8Zn-2.2Ca (wt.％) magnesium alloy were investigated. The results indicate that, after adding 1.0 wt.％Ce to the Mg-3.8Zn-2.2Ca alloy, small amounts of Mg12Ce phase are formed and an obvious equiaxed trendance is observed. At the same time, the average grain size decreases from 234μm to 71μm and the morphology of some Ca2Mg6Zn3 phases changes from initial coarse blocks to fine particles. In addition, adding 1.0 wt.％Ce to the Mg-3.8Zn-2.2Ca alloy also improve the tensile and creep properties of the alloy. Further investigations need to be considered in order to optimize the amounts of Ce additions and understand its effects on the tensile and creep properties and age-hardening behaviour.

关键词： Magnesium alloy Mg-3.8Zn-2.2Ca alloy Ca2Mg6Zn3 phase Ce

作者: Mingbo YANG Caiyuan QIN Yi ZHU Liang CHENG

作者单位: Materials Science and Engineering College, Chongqing University of Technology, Chongqing400054, Chin Materials Science and Engineering College, Chongqing University of Technology, Chongqing400054, Chin Materials Science and Engineering College, Chongqing University of Technology, Chongqing 400054, Chi

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 80-83

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）