文献类型：会议论文

英文题名：A theoretical study on atomic motion during twinning for magnesium

作者：He, Jiejun Wu, Lushu

第一作者：何杰军

通信作者：He, Jiejun|[1444053a3247f96f2357f]何杰军;

机构：[1] School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou, 550003, China; [2] College of Mechanical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou, 550003, China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：|贵州理工学院材料与冶金工程学院

语种：英文

外文关键词：Atoms - Magnesium - Twinning

年份：2017

摘要：A theoretical analysis based on the calculation on atomic displacement vectors during twinning was performed to investigate twinning mechanism for magnesium and its alloys. After that, a new mode on the atomic motion during twinning was proposed for magnesium and its alloys. During twinning, it was suggested that atomic motion can be accomplished by two steps from a geometrical view: a pre-rotation of quadrangular prism-shaped atomic group units and a subsequent shear. Through this model, atomic motion during twinning in magnesium can be describe using uniform law. It provide a new view for us to explore the twinning mechanism for HCP metals. But it should be pointed out that the two-step motion law in this paper is just an artificial division. In realistic deformation twinning in magnesium, it is possible the rotation and shear happen simultaneously. ? 2017 The Japan Institute of Metals and Materials.