文献类型：期刊文献

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, JJ[1]|[1444053a3247f96f2357f]何杰军;

机构：[1]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Guizhou Inst Technol, Coll Mech Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2017

卷号：58

期号：3

起止页码：427-432

外文期刊名：MATERIALS TRANSACTIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000398132300023)】；

基金：This work was supported by National Natural Science Foundation of China (51501045), Natural Science Foundation of Guizhou Province (J[2015]2067), Research Foundation for Advanced Talents in Guizhou Intsitute of Technology (XJGC20141102) and Foundation of Talent Team (Guizhou(2015)4008).

语种：英文

外文关键词：magnesium; twinning; atomic displacement vectors

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.