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Irradiation damage of helium-accumulated vanadium: atomic simulations

文献类型：期刊论文

作者Zhu, Xiaolu1,2; Wang, Canglong2; Hu, Nengwen3; Hu, Wangyu3; Duan, Wenshan1; Yang, Lei1,2
刊名RSC ADVANCES
出版日期2016
卷号6页码:80939-80945
ISSN号2046-2069
DOI10.1039/c6ra16590g
英文摘要Molecular dynamics simulations have been implemented to gain insight into the displacement cascades in vanadium containing substitutional He atoms with several different concentrations from 0.2 to 1.0 at%. The dependence of displacement cascades on the irradiation temperature (300 and 600 K) and energy of the primary knock-on atom (from 5 to 40 keV) have been analysed. It was shown that the number of Frenkel pairs increases with the increase of the energy of the primary knock-on atom. The increasing rate of the number of Frenkel pairs at 600 K is lower than that at 300 K. The predominant attention has been focused on the formation of He-vacancy clusters. The obtained results show that the number of Hevacancy clusters increases with the increase in He concentration and the energy of the primary knock-on atom. The largest size of He-vacancy is independent on the energy of the primary knock-on atom and the irradiation temperature at low He concentrations. The configurations of small He-vacancy clusters are different from those in iron. The He atoms in He-vacancy clusters prefer to occupy the tetrahedral interstitial sites rather than the octahedral interstitial sites.
WOS关键词ALPHA-IRON ; DISPLACEMENT CASCADES ; FUSION APPLICATIONS ; VACANCY CLUSTERS ; BCC METALS ; ALLOYS ; 1ST-PRINCIPLES ; STABILITY ; DIFFUSION ; RADIATION
资助项目"Strategic Priority Research Program" of the Chinese Academy of Sciences[XDA03030100] ; National Magnetic Confinement Fusion Science Program of China[2014GB104002] ; National Natural Science Foundation of China[11304324] ; National Natural Science Foundation of China[11547304] ; Specialized Research Fund for the Doctoral Program of Higher Education of China[20120161110015]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000383903500067
出版者ROYAL SOC CHEMISTRY
资助机构"Strategic Priority Research Program" of the Chinese Academy of Sciences ; National Magnetic Confinement Fusion Science Program of China ; National Natural Science Foundation of China ; Specialized Research Fund for the Doctoral Program of Higher Education of China
源URL[http://119.78.100.186/handle/113462/43455]  
专题中国科学院近代物理研究所
通讯作者Wang, Canglong; Duan, Wenshan
作者单位1.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
3.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Xiaolu,Wang, Canglong,Hu, Nengwen,et al. Irradiation damage of helium-accumulated vanadium: atomic simulations[J]. RSC ADVANCES,2016,6:80939-80945.
APA Zhu, Xiaolu,Wang, Canglong,Hu, Nengwen,Hu, Wangyu,Duan, Wenshan,&Yang, Lei.(2016).Irradiation damage of helium-accumulated vanadium: atomic simulations.RSC ADVANCES,6,80939-80945.
MLA Zhu, Xiaolu,et al."Irradiation damage of helium-accumulated vanadium: atomic simulations".RSC ADVANCES 6(2016):80939-80945.

入库方式： OAI收割

来源：近代物理研究所

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