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	Characterization of helium-vacancy complexes in he-ions implanted fe9cr by using positron annihilation spectroscopy
	Zhu, Te1,2; Jin, Shuoxue1; Zhang, Peng1; Song, Ligang1,2; Lian, Xiangyu1; Fan, Ping3; Zhang, Qiaoli3; Yuan, Daqing3; Wu, Haibiao4; Yu, Runsheng1
刊名	Journal of nuclear materials
	2018-07-01
卷号	505页码:69-72
关键词	Helium-vacancy complexes Alloy Bubble nucleation Positron annihilation technique
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2018.03.048
通讯作者	Cao, xingzhong(caoxzh@ihep.ac.cn)
英文摘要	The formation of helium bubble precursors, i.e., helium-vacancy complexes, was investigated for fe9cr alloy, which was uniformly irradiated by using 100 kev helium ions with fluences up to 5x10(16) ions/cm(2) at rt, 523, 623, 723, and 873 k. helium-irradiation-induced microstructures in the alloy were probed by positron annihilation technique. the results show that the ratio of helium atom to vacancy (m/n) in the irradiation induced hemvn clusters is affected by the irradiation temperature. irradiated at room temperature, there is a coexistence of large amounts of hemv1 and mono-vacancies in the sample. however, the overpressured hemvn (m > n) clusters or helium bubbles are easily formed by the helium-filled vacancy clusters (hemv1 and hemvn (m approximate to n)) absorbing helium atoms when irradiated at 523 k and 823 k. the results also show that void swelling of the alloy is the largest under 723 k irradiation. (c) 2018 elsevier b.v. all rights reserved.
WOS关键词	ACTIVATION FERRITIC/MARTENSITIC STEEL ; MICROSTRUCTURAL EVOLUTION ; MARTENSITIC STEEL ; TEMPERATURE ; DEPENDENCE ; PROGRESS ; FUSION ; F82H
WOS研究方向	Materials Science ; Nuclear Science & Technology
WOS类目	Materials Science, Multidisciplinary ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000432845800009
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177492
专题	高能物理研究所
通讯作者	Cao, Xingzhong
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Ctr, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.China Inst Atom Energy, Beijing 102413, Peoples R China 4.Univ South China, Affiliated Hosp 1, Hengyang 421001, Peoples R China 5.Kyoto Univ, Res Reactor Inst, Kumatori, Osaka 5900494, Japan
推荐引用方式 GB/T 7714	Zhu, Te,Jin, Shuoxue,Zhang, Peng,et al. Characterization of helium-vacancy complexes in he-ions implanted fe9cr by using positron annihilation spectroscopy[J]. Journal of nuclear materials,2018,505:69-72.
APA	Zhu, Te.,Jin, Shuoxue.,Zhang, Peng.,Song, Ligang.,Lian, Xiangyu.,...&Wang, Baoyi.(2018).Characterization of helium-vacancy complexes in he-ions implanted fe9cr by using positron annihilation spectroscopy.Journal of nuclear materials,505,69-72.
MLA	Zhu, Te,et al."Characterization of helium-vacancy complexes in he-ions implanted fe9cr by using positron annihilation spectroscopy".Journal of nuclear materials 505(2018):69-72.

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