Effect of irradiation and irradiation defects on the mobility of Sigma 5 symmetric tilt grain boundaries in iron: An atomistic study
文献类型：期刊论文
| 作者 | Wang, X. Y.1; Gao, N.2; Xu, B.1; Wang, Y. N.1; Shu, G. G.3; Li, C. L.3; Liu, W.1
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| 刊名 | JOURNAL OF NUCLEAR MATERIALS
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| 出版日期 | 2018-11 |
| 卷号 | 510页码:568-574 |
| 关键词 | Grain boundaries Radiation defects Grain growth Stress and strain |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2018.07.020 |
| 英文摘要 | Body center cubic iron materials are commonly used in nuclear power plants. In bcc-iron, symmetric tilt grain boundaries (STGBs), which are believed to play important roles on self-healing, are susceptible to configuration and structural change under irradiation. The effect of such changes on mechanical properties of such GBs is still unknown. In this work, using molecular dynamics simulations, we find that the critical shear stress tau(c) required for Sigma 5 STGB migration is greatly reduced by either displacement cascade nearby or absorption of defect clusters. Moreover, we find that the trapping of radiation-induced interstitial-type dislocation loops could also decrease tau(c), indicating that displacement cascades could also exert a long-range effect on GBs due to the fast diffusion of interstitial clusters. (C) 2018 Published by Elsevier B.V. |
| WOS关键词 | MOLECULAR-DYNAMICS ; DISLOCATION LOOPS ; BCC IRON ; INTERSTITIAL EMISSION ; FE ; SIMULATIONS ; METALS ; MICROSTRUCTURE ; SEGREGATION ; CASCADES |
| 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] |
| WOS研究方向 | Materials Science ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000446065100059 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/64401]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xu, B.; Liu, W. |
| 作者单位 | 1.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 2.Inst Modern Phys, Lab Adv Nucl Mat, 509 NanChang Rd, Lanzhou 730000, Gansu, Peoples R China 3.China Nucl Power Engn Co Ltd, Sate Key Lab Nucl Power Safety Monitoring Technol, Shenzhen 518172, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, X. Y.,Gao, N.,Xu, B.,et al. Effect of irradiation and irradiation defects on the mobility of Sigma 5 symmetric tilt grain boundaries in iron: An atomistic study[J]. JOURNAL OF NUCLEAR MATERIALS,2018,510:568-574. |
| APA | Wang, X. Y..,Gao, N..,Xu, B..,Wang, Y. N..,Shu, G. G..,...&Liu, W..(2018).Effect of irradiation and irradiation defects on the mobility of Sigma 5 symmetric tilt grain boundaries in iron: An atomistic study.JOURNAL OF NUCLEAR MATERIALS,510,568-574. |
| MLA | Wang, X. Y.,et al."Effect of irradiation and irradiation defects on the mobility of Sigma 5 symmetric tilt grain boundaries in iron: An atomistic study".JOURNAL OF NUCLEAR MATERIALS 510(2018):568-574. |
入库方式： OAI收割
来源：近代物理研究所
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