Uniaxial Strain-Induced Grain Boundary Migration in Titanium

被引：0
作者：
Tao Sun
Aidong Tu
Hao Wang
Shu-Jun Li
Hui Peng
Jian-Ping Li
机构：
[1] Northeastern University,State Key Laboratory of Rolling and Automation
[2] Chinese Academy of Sciences,Institute of Metal Research
[3] University of Shanghai for Science and Technology,School of Materials Science and Engineering
[4] Institute of Fluid Physics,National Key Laboratory of Shock Wave and Detonation Physics
来源：
Acta Metallurgica Sinica (English Letters) | 2021年 / 34卷
关键词：
Grain boundary; Titanium; Migration; Dislocation; Twinning;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The mechanical response of a bi-crystal model with a 90° grain boundary under external compressive and tensile loading parallel to the boundary plane normal was investigated with molecular dynamics simulations. The grain boundary was found to migrate along two opposite directions upon compressive and tensile straining, with the formation of inter-connected coherent twin boundary and basal/prismatic boundary. The atomic details of such grain boundary migration were unraveled, which indicated the role of interface dislocations. The temperature effect was also discussed.
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页码：1715 / 1720
页数：5
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