2015年10月
Simulation of He embrittlement at grain boundaries in bcc transition metals
JOURNAL OF NUCLEAR MATERIALS
- ,
- 巻
- 465
- 号
- 開始ページ
- 695
- 終了ページ
- 701
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jnucmat.2015.07.002
- 出版者・発行元
- ELSEVIER SCIENCE BV
To investigate what atomic properties largely determine vulnerability to He embrittlement at grain boundaries (GB) of bcc metals, we introduce a computational model composed of first principles density functional theory and a He segregation rate theory model. Predictive calculations of He embrittlement at the first wall of the future DEMO fusion concept reactor indicate that variation in the He embrittlement originated not only from He production rate related to neutron irradiation, but also from the He segregation energy at the GB that has a systematic trend in the periodic table. (C) 2015 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.jnucmat.2015.07.002
- ISSN : 0022-3115
- eISSN : 1873-4820
- ORCIDのPut Code : 37661439
- Web of Science ID : WOS:000364890300085