Study on vacancy-type defects in SIMP steel induced by separate and sequential H and He ion implantation

doi:10.1016/j.jnucmat.2019.04.012

	Study on vacancy-type defects in SIMP steel induced by separate and sequential H and He ion implantation
	Zhang, Tongmin 1; Wang, Zhiguang1,2 ; Cao, Xingzhong 3; Lu, Eryang 3; Jin, Shuoxue 3; Li, Jinyu1 ; Li, Bingsheng1 ; Zhu, Yabin 1,2; Cui, Minghuan 1,2; Shen, Tielong 1,2
刊名	JOURNAL OF NUCLEAR MATERIALS
	2019-07-01
卷号	520 页码:131-139
关键词	Helium/hydrogen implantation Positron annihilation Vacancy defects SIMP steel
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2019.04.012
通讯作者	Shen, Tielong(shentielong@impcas.ac.cn) ; Wang, Zhiguang(zhgwang@impcas.ac.cn)
英文摘要	To provide a basic understanding of the synergy effect of hydrogen and helium on structural materials for future advanced nuclear systems, the vacancy-type defects in SIMP steel induced by separate and sequential H and He implantation at room temperature was investigated using positron annihilation Doppler broadening spectroscopy (DBS) and transmission electron microscopy (TEM). The DBS results indicated that, when implanted by H and He separately, the Delta S parameter of the H-implanted sample was greater than that of He, although the damage level (that is, the displacement per atom) induced by H was lower than that induced by He. This could indicate that He is more easily trapped by vacancy than H and prefers to occupy the center of the vacancy. When sequentially co-implanted by He and H, whatever the implantation sequence, the Delta S parameter was lower than that of H-only implantation. In addition, the Delta S parameter of sequential He + H implantation was greater than that of H + He implantation when the dose of H was sufficiently high. Combined with the TEM results, the synergistic effects of He and H on vacancy-type defect evolution are discussed. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11505246] ; National Natural Science Foundation of China[91426301] ; National Natural Science Foundation of China[11605256] ; National Natural Science Foundation of China[11505247] ; National Natural Science Foundation of China[U1832206]
WOS关键词	FERRITIC/MARTENSITIC STEEL ; IRRADIATION CONDITIONS ; HYDROGEN ; HELIUM ; FUSION ; RETENTION ; DEUTERIUM ; EVOLUTION ; FISSION ; METALS
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000468520500014
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/133605]
专题	中国科学院近代物理研究所
通讯作者	Wang, Zhiguang; Shen, Tielong
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Tongmin,Wang, Zhiguang,Cao, Xingzhong,et al. Study on vacancy-type defects in SIMP steel induced by separate and sequential H and He ion implantation[J]. JOURNAL OF NUCLEAR MATERIALS,2019,520:131-139.
APA	Zhang, Tongmin.,Wang, Zhiguang.,Cao, Xingzhong.,Lu, Eryang.,Jin, Shuoxue.,...&Jin, Peng.(2019).Study on vacancy-type defects in SIMP steel induced by separate and sequential H and He ion implantation.JOURNAL OF NUCLEAR MATERIALS,520,131-139.
MLA	Zhang, Tongmin,et al."Study on vacancy-type defects in SIMP steel induced by separate and sequential H and He ion implantation".JOURNAL OF NUCLEAR MATERIALS 520(2019):131-139.