New understanding of nano-scale interstitial dislocation loops in BCC iron
文献类型：期刊论文
| 作者 | Gao, N.1; Chen, J.2; Kurtz, R. J.3; Wang, Z. G.1; Zhang, R. F.4,5; Gao, F.6 |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2017-11-15 |
| 卷号 | 29页码:7 |
| 关键词 | dislocation loop non-conservation of Burgers vector law molecular dynamics rotation of loop |
| ISSN号 | 0953-8984 |
| DOI | 10.1088/1361-648X/aa8a47 |
| 英文摘要 | Complex states of nanoscale interstitial dislocation loop can be described by its habit plane and Burgers vector. Using atomistic simulations, we provide direct evidences on the change of the habit plane of a 1/2<1 1 1> loop from {1 1 1} to {1 1 0} and {2 1 1}, in agreement with TEM observations. A new {1 0 0} habit plane of this loop is also predicted by simulations. The non-conservation of the Burgers vector is approved theoretically for: (1) dislocation reactions between loops with different Burgers vectors and (2) the transition between <1 0 0> loops and 1/2<1 1 1> loops. The rotation from a 1/2<1 1 1> to a <1 0 0> loop has also been explored, which occurs at 570 K for time on the order of 10 s. The dislocation-precipitate phase duality and change of habit plane are then proposed as new features for nano-scale dislocation loops. |
| WOS关键词 | MOLECULAR-DYNAMICS ; IRRADIATED IRON ; CLUSTERS ; METALS ; ENERGY |
| 资助项目 | National Natural Science Foundation of China[11375242] ; National Natural Science Foundation of China[11675230] ; National Natural Science Foundation of China[91426301] ; National Thousand Young Talents Program of China ; Youth Innovation Promotion Association CAS ; Office of Fusion Energy Sciences, US Department of Energy[DE-AC05-76RL01830] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000412413700001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; National Thousand Young Talents Program of China ; Youth Innovation Promotion Association CAS ; Office of Fusion Energy Sciences, US Department of Energy |
| 源URL | [http://119.78.100.186/handle/113462/24547]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Gao, N. |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Gansu, Peoples R China 2.Paul Scherrer Inst, CH-5232 Villigen, Switzerland 3.Pacific Northwest Natl Lab, POB 999, Richland, WA 99352 USA 4.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China 5.Beihang Univ, Int Res Inst Multidisciplinary Sci, Beijing 100191, Peoples R China 6.Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA |
| 推荐引用方式 GB/T 7714 | Gao, N.,Chen, J.,Kurtz, R. J.,et al. New understanding of nano-scale interstitial dislocation loops in BCC iron[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2017,29:7. |
| APA | Gao, N.,Chen, J.,Kurtz, R. J.,Wang, Z. G.,Zhang, R. F.,&Gao, F..(2017).New understanding of nano-scale interstitial dislocation loops in BCC iron.JOURNAL OF PHYSICS-CONDENSED MATTER,29,7. |
| MLA | Gao, N.,et al."New understanding of nano-scale interstitial dislocation loops in BCC iron".JOURNAL OF PHYSICS-CONDENSED MATTER 29(2017):7. |
入库方式： OAI收割
来源：近代物理研究所
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