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The stable configurations of vacancy clusters and their effect on neighboring vacancy migration behavior in TiAl
Wang BY(王宝义); Wang, TM; Wang, WJ; Zhang, HT; Wang, BY
2001
发表期刊RARE METAL MATERIALS AND ENGINEERING (IF:0.258[JCR-2016],0.245[5-Year])
卷号30期号:5页码:326-+
通讯作者Beijing Univ Aeronaut & Astronaut, Res Ctr Mat Phys & Chem, Beijing 100083, Peoples R China ; Lanzhou Univ, Sch Phys Sci & Tech, Dept Mat Sci, Lanzhou 730000, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100083, Peoples R China
文章类型Article
摘要The Molecular Dynamics Method with the Finnis-Sinclair many-body potential is used to calculate the formation energies and combination energies of some small vacancy clusters with different configurations in TiAl. The most stable configuration of a vacancy cluster and its effect on vacancy migration nearby the cluster are simulated and discussed. The results show that, in the most stable configuration, each vacancy makes its best endeavor to form nearest neighbor relationship with the other vacancies, and there are anti-site defect nearby the cluster. The atoms nearby the vacancy cluster would move towards the cluster center for bigger cluster, and it seems that there exist interstitials in the vacancy cluster. The existing vacancy cluster as the aggregation center of vacancy has the ability of trapping or absorbing the near vacancy.
关键词computer simulation intermetallic compound TiAl Vacancy Vacancy cluster migration
学科领域Materials Science; Metallurgy & Metallurgical Engineering
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语种英语
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000171963400002
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文献类型期刊论文
条目标识符https://ir.ihep.ac.cn/handle/311005/236994
专题多学科研究中心
加速器中心
作者单位中国科学院高能物理研究所
第一作者单位中国科学院高能物理研究所
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Wang BY,Wang, TM,Wang, WJ,et al. The stable configurations of vacancy clusters and their effect on neighboring vacancy migration behavior in TiAl[J]. RARE METAL MATERIALS AND ENGINEERING,2001,30(5):326-+.
APA 王宝义,Wang, TM,Wang, WJ,Zhang, HT,&Wang, BY.(2001).The stable configurations of vacancy clusters and their effect on neighboring vacancy migration behavior in TiAl.RARE METAL MATERIALS AND ENGINEERING,30(5),326-+.
MLA 王宝义,et al."The stable configurations of vacancy clusters and their effect on neighboring vacancy migration behavior in TiAl".RARE METAL MATERIALS AND ENGINEERING 30.5(2001):326-+.
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