| Dissociation of Tilt Dislocation Walls in Au | |
| Geng, Yu-Juan1,2; Wang, Chun-Yang3; Yan, Jing-Xin1,4; Zhang, Zhen-Jun1; Yang, Hua-Jie1; Yang, Jin-Bo1,2; Du, Kui3; Zhang, Zhe-Feng1,2 | |
| Corresponding Author | Yang, Jin-Bo(jbyang@imr.ac.cn) ; Du, Kui(kuidu@imr.ac.cn) ; Zhang, Zhe-Feng(zhfzhang@imr.ac.cn) |
| 2022-05-21 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Pages | 6 |
| Abstract | 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). |
| Keyword | Dislocation Tilt wall Stacking fault Dissociation Grain boundary |
| Funding Organization | National Natural Science Foundation of China ; K.C. Wong Education Foundation |
| DOI | 10.1007/s40195-022-01409-3 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000798472500002 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174066 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Jin-Bo; Du, Kui; Zhang, Zhe-Feng |
| Affiliation | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Chongqing Jiaotong Univ, Sch Mat Sci & Engn, Chongqing 400074, Peoples R China |
| Recommended Citation 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. |
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