The effects of Al-Ca compounds on grain refinement of Mg-Ca alloys

摘要：

In the present work, Al-Ca metallic compound was prepared in Mg-Ca alloys and the effects of Al-Ca metallic compound and different Al/Ca values on the grain refinement of Mg-Ca alloys were investigated by scanning electron microscopy and X-ray diffraction, and the mechanism of grain refinement of Mg-Ca alloys was discussed. The results showed that the grain size of Mg-0.5Ca alloy was obviously reduced from 550μm to 230μm due to the addition of Al. Al2Ca phase existed in these alloys and its morphology evolved from granular to rod-like. It is regarded as the main factor for the grain refinement.

关键词： Magnesium alloy Grain refinement metallic compounds

作者: Shutao Xiong Fusheng Pan Bin Jiang Xiaoke Li

作者单位: College of Materials Science and Engineering, Chongqing University,Chongqing, China, 400045 National College of Materials Science and Engineering, Chongqing University, Chongqing, China, 400045 Nationa

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: 348-354

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）