Nucleation of dislocations and twins in fcc nanocrystals: Dynamics of structural transformations
文献类型：期刊论文
| 作者 | Korchuganov, Aleksandr, V2; Tyumentsev, Aleksandr N.1,2; Zolnikov, Konstantin P.2; Litoychenko, Igor Yu1,2; Kryzhevich, Dmitrij S.2; Gutmanas, Elazar3; Li, Shouxin4; Wang, Zhongguang4; Psakhie, Sergey G.2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 35期号:1页码:201-206 |
| 关键词 | Lattice defects Dislocation Nanotwin Atomic model Molecular dynamics simulations |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2018.09.025 |
| 通讯作者 | Psakhie, Sergey G.(sp@ispms.ru) |
| 英文摘要 | This paper reports on a molecular dynamics study of structural rearrangements in a copper nanocrystal during nucleation of plastic deformation under uniaxial tension. The study shows that the resulting nucleation of partial dislocations on the free surface and their glide occurs through local fcc -> bcc -> hcp transformations via consistent atomic displacements. We propose an atomic model for the generation of dislocations and twins based on local reversible fcc -> bcc -> fcc transformations, with the reverse one proceeding through an alternative system. The model gives an insight into possible causes and mechanisms of the generation of partial dislocations and mechanical twins in two and more adjacent planes of plastically deformed nanocrystals. The obtained data allow a better understanding of how plasticity is generated in nanostructured materials. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | Russian Science Foundation[17-19-01374] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000449263900027 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | Russian Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/130405]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Psakhie, Sergey G. |
| 作者单位 | 1.Natl Res Tomsk State Univ, 36 Lenin Ave, Tomsk 634050, Russia 2.Russian Acad Sci, Siberian Branch, Inst Strength Phys & Mat Sci, 2-4 Akad Sky Ave, Tomsk 634055, Russia 3.Technion Israel Inst Technol, IL-32000 Haifa, Israel 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Korchuganov, Aleksandr, V,Tyumentsev, Aleksandr N.,Zolnikov, Konstantin P.,et al. Nucleation of dislocations and twins in fcc nanocrystals: Dynamics of structural transformations[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(1):201-206. |
| APA | Korchuganov, Aleksandr, V.,Tyumentsev, Aleksandr N..,Zolnikov, Konstantin P..,Litoychenko, Igor Yu.,Kryzhevich, Dmitrij S..,...&Psakhie, Sergey G..(2019).Nucleation of dislocations and twins in fcc nanocrystals: Dynamics of structural transformations.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(1),201-206. |
| MLA | Korchuganov, Aleksandr, V,et al."Nucleation of dislocations and twins in fcc nanocrystals: Dynamics of structural transformations".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.1(2019):201-206. |
入库方式： OAI收割
来源：金属研究所
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