Effects of edge dislocations on interstitial helium and helium cluster behavior in alpha-Fe
文献类型：期刊论文
| 作者 | Wang, Y. X.1,2; Xu, Q.1; Yoshiie, T.1; Pan, Z. Y.2 |
| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2008-05-31 |
| 卷号 | 376页码:133-138 |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2008.02.066 |
| 英文摘要 | The properties of interstitial He in the vicinity of an edge dislocation were studied using molecular dynamics (MD) simulation. The distribution of the binding energy of a single interstitial He to the dislocation with and without a jog is calculated. The results show that the distribution of the binding energy is governed by the elastic interaction between the interstitial He and the dislocation. The interstitial He is strongly attracted to the dislocation in the tensile region of the dislocation. The jog acts as a stronger sink to absorb interstitial He. The binding energy to the jog is even larger than that of the dislocation. A small He cluster (composed of three interstitial He atoms) was trapped by the dislocation core in the form of a chain along the dislocation line. The dislocation changes the migration behavior of the He cluster, and provides a pipe for the small cluster to exhibit one-dimensional motion. The diffusion of the He cluster in the dislocation is faster than in the defect-free iron, where the He cluster migrates three-dimensionally (31)). If the dislocation is decorated by a jog, the small cluster sinks deep into the jog. The jog prevents the He cluster from escaping. (C) 2008 Elsevier B.V. All rights reserved. |
| WOS关键词 | MICROSTRUCTURAL EVOLUTION ; COMPUTER-SIMULATION ; THERMAL-STABILITY ; VACANCY CLUSTERS ; IRON ; IRRADIATION ; CU ; HE ; ACCUMULATION ; ALPHA-AL2O3 |
| WOS研究方向 | Materials Science ; Nuclear Science & Technology ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000256816600002 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/28585]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xu, Q. |
| 作者单位 | 1.Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan 2.Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Y. X.,Xu, Q.,Yoshiie, T.,et al. Effects of edge dislocations on interstitial helium and helium cluster behavior in alpha-Fe[J]. JOURNAL OF NUCLEAR MATERIALS,2008,376:133-138. |
| APA | Wang, Y. X.,Xu, Q.,Yoshiie, T.,&Pan, Z. Y..(2008).Effects of edge dislocations on interstitial helium and helium cluster behavior in alpha-Fe.JOURNAL OF NUCLEAR MATERIALS,376,133-138. |
| MLA | Wang, Y. X.,et al."Effects of edge dislocations on interstitial helium and helium cluster behavior in alpha-Fe".JOURNAL OF NUCLEAR MATERIALS 376(2008):133-138. |
入库方式： OAI收割
来源：近代物理研究所
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