Comprehensive molecular dynamics simulations of the stacking fault tetrahedron interacting with a mixed dislocation at elevated temperature
文献类型：期刊论文
| 作者 | Fan, Haidong1; Wang, Qingyuan1,2; Ouyang, Chaojun3
|
| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 465页码:245-253 |
| 关键词 | Stacking fault tetrahedron Full defect absorption Molecular dynamics simulations Defect-free channels Mixed dislocations |
| ISSN号 | 0022-3115 |
| 通讯作者 | Fan, Haidong |
| 英文摘要 | defect-free channels were frequently observed in irradiated materials, i.e. copper, as a result of the stacking fault tetrahedron (SFT) interactions with dislocations. However, the underlying mechanisms for this process are still unclear to date. To address them, a comprehensive study on the interactions between SFTs and mixed dislocations was performed using molecular dynamics simulations. In particular, eight interaction geometries were considered, in terms of the dislocation Burgers vector directions, dislocation gliding directions and intersection positions on SFT. Various interaction outcomes were revealed after dislocation detachment. (1) SFT is fully absorbed through the transformation into Lomer dislocations, and subsequently moves out of free surfaces along the dislocation. (2) SFT is partially absorbed with the absorbed SFT base moving out of free surfaces along the dislocation. (3) SFT is not absorbed but sheared with ledges left on the SFT faces. (4) SFT is unaffected by the mixed dislocation. The current simulations, especially the full SFT absorption, provide important insights into the forming mechanisms of defect-free channels in irradiated materials. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Nuclear Science & Technology ; Mining & Mineral Processing |
| 研究领域[WOS] | Materials Science ; Nuclear Science & Technology ; Mining & Mineral Processing |
| 关键词[WOS] | TRANSMISSION ELECTRON-MICROSCOPY ; ATOMIC-SCALE ; GLIDING DISLOCATIONS ; IRRADIATED COPPER ; SCREW DISLOCATION ; QUENCHED GOLD ; FRANK LOOPS ; LOCALIZATION ; DEFORMATION ; FCC |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000364890300032 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/13867]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Sichuan Univ, Dept Mech, Chengdu 610065, Sichuan, Peoples R China 2.Chengdu Univ, Adv Res Inst, Chengdu 610106, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Haidong,Wang, Qingyuan,Ouyang, Chaojun. Comprehensive molecular dynamics simulations of the stacking fault tetrahedron interacting with a mixed dislocation at elevated temperature[J]. JOURNAL OF NUCLEAR MATERIALS,2015,465:245-253. |
| APA | Fan, Haidong,Wang, Qingyuan,&Ouyang, Chaojun.(2015).Comprehensive molecular dynamics simulations of the stacking fault tetrahedron interacting with a mixed dislocation at elevated temperature.JOURNAL OF NUCLEAR MATERIALS,465,245-253. |
| MLA | Fan, Haidong,et al."Comprehensive molecular dynamics simulations of the stacking fault tetrahedron interacting with a mixed dislocation at elevated temperature".JOURNAL OF NUCLEAR MATERIALS 465(2015):245-253. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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