Atomistic Simulations of the Effect of Helium on the Dissociation of Screw Dislocations in Nickel
文献类型：期刊论文
| 作者 | Xu, J; Wang, CB; Zhang, W; Ren, CL; Gong, HF; Huai, P |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2016 |
| 卷号 | 33期号:2页码:— |
| 关键词 | MOLECULAR-DYNAMICS SIMULATION STRUCTURAL-MATERIALS EDGE DISLOCATIONS STRESS CRYSTALS ALUMINUM ATOMS LOOPS NI |
| ISSN号 | 0256-307X |
| 通讯作者 | Huai, P (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. |
| 英文摘要 | The interactions of He with dissociated screw dislocations in face-centered-cubic (fcc) Ni are investigated by using molecular dynamics simulations based on an embedded-atom method model. The binding and formation energies of interstitial He in and near Shockley partial cores are calculated. The results show that interstitial He atoms at tetrahedral sites in the perfect fcc lattice and atoms occupying sites one plane above or below one of the two Shockley partial cores exhibit the strongest binding energy. The attractive or repulsive nature of the interaction between interstitial He and the screw dislocation depends on the relative position of He to these strong binding sites. In addition, the effect of He on the dissociation of screw dislocations are investigated. It is found that He atoms homogeneously distributed in the glide plane can reduce the stacking fault width. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369637200016 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/25652]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Xu, J,Wang, CB,Zhang, W,et al. Atomistic Simulations of the Effect of Helium on the Dissociation of Screw Dislocations in Nickel[J]. CHINESE PHYSICS LETTERS,2016,33(2):—. |
| APA | Xu, J,Wang, CB,Zhang, W,Ren, CL,Gong, HF,&Huai, P.(2016).Atomistic Simulations of the Effect of Helium on the Dissociation of Screw Dislocations in Nickel.CHINESE PHYSICS LETTERS,33(2),—. |
| MLA | Xu, J,et al."Atomistic Simulations of the Effect of Helium on the Dissociation of Screw Dislocations in Nickel".CHINESE PHYSICS LETTERS 33.2(2016):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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