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Dissociation of Tilt Dislocation Walls in Au

文献类型：期刊论文

作者Geng, Yu-Juan3,4; Wang, Chun-Yang2; Yan, Jing-Xin1,4; Zhang, Zhen-Jun4; Yang, Hua-Jie4; Yang, Jin-Bo3,4; Du, Kui2; Zhang, Zhe-Feng3,4
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2022-05-21
页码6
关键词Dislocation Tilt wall Stacking fault Dissociation Grain boundary
ISSN号1006-7191
DOI10.1007/s40195-022-01409-3
通讯作者Yang, Jin-Bo(jbyang@imr.ac.cn) ; Du, Kui(kuidu@imr.ac.cn) ; Zhang, Zhe-Feng(zhfzhang@imr.ac.cn)
英文摘要The movement or dissociation of dislocations is significantly important for better understanding the plastic deformation mechanisms and mechanical properties of metals. It is commonly believed that a dislocation < 110 > /2 in Au is easy to dissociate into a pair of Shockley partial dislocations < 112 > /6 due to low stacking fault energy (SFE). Contrary to this prevailing perception, the present atomistic modeling demonstrates that this reaction could be completely suppressed when dislocations < 110 > /2 are grouped into tilt walls, consistent with our experimental observations. Such phenomenon is actually the extreme case accompanying with the variation of Burgers vectors of partials with tilt angle, as revealed by a series of simulations, from which it is clearly seen that the Burgers vectors of partials deviate considerably from that of Shockley partials, enormously depending on the tilt angle. Our findings could facilitate a better understanding on many phenomena and properties of face-centered cubic metals (FCC).
资助项目National Natural Science Foundation of China[52071316] ; National Natural Science Foundation of China[51771206] ; National Natural Science Foundation of China[51571198] ; K.C. Wong Education Foundation[GJTD-2020-09]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000798472500002
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构National Natural Science Foundation of China ; K.C. Wong Education Foundation
源URL[http://ir.imr.ac.cn/handle/321006/174065]  
专题金属研究所_中国科学院金属研究所
通讯作者Yang, Jin-Bo; Du, Kui; Zhang, Zhe-Feng
作者单位1.Chongqing Jiaotong Univ, Sch Mat Sci & Engn, Chongqing 400074, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
4.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Geng, Yu-Juan,Wang, Chun-Yang,Yan, Jing-Xin,et al. Dissociation of Tilt Dislocation Walls in Au[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:6.
APA Geng, Yu-Juan.,Wang, Chun-Yang.,Yan, Jing-Xin.,Zhang, Zhen-Jun.,Yang, Hua-Jie.,...&Zhang, Zhe-Feng.(2022).Dissociation of Tilt Dislocation Walls in Au.ACTA METALLURGICA SINICA-ENGLISH LETTERS,6.
MLA Geng, Yu-Juan,et al."Dissociation of Tilt Dislocation Walls in Au".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):6.

入库方式： OAI收割

来源：金属研究所

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