Effect of interaction between H and He on micro-defects in Fe9Cr alloy investigated by slow positron beam

doi:10.1016/j.jnucmat.2019.151748

	Effect of interaction between H and He on micro-defects in Fe9Cr alloy investigated by slow positron beam
	Li, Lei 1,2; Jin, Shuoxue 2; Zhang, Peng 2; Wang, Dandan 1; Cao, Xingzhong 2; Guo, Liping 3; Xu, Qiu 4; Li, Jun 5; Zhang, Tongmin 5; Li, Liben 1
刊名	JOURNAL OF NUCLEAR MATERIALS
	2019-12-01
卷号	526 页码:5
关键词	H/He Sequential irradiation Micro-defects Fe9Cr alloy
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2019.151748
通讯作者	Jin, Shuoxue(jinshuoxue@ihep.ac.cn) ; Wang, Dandan(wangdan106021@126.com)
英文摘要	In order to investigate the effect of interaction between H and He ions on micro-defects in Fe9Cr alloy, well-annealed Fe9Cr alloy were pre-damaged firstly with 1 MeV Ni ions to a dose of 3.4 x 10(13)/cm(2), and then irradiated with single (H or He) ion beam and sequential (H/He or He/H) ions beam. The irradiation were performed with 50 keV H ions, 80 keV He ions with doses of 1 x 10(16)/cm(2) and 2 x 10(15)/cm(2) at 723 K, respectively. Results of slow positron beam show that the S parameter decreased obviously after single (H or He) ions beam irradiation compared to the pre-damaged specimen, which indicate H or He (H-n or Hen) clusters deposit at the damage area caused by Ni ion irradiation and they occupy vacancy sites (V-m), resulting in the formation of numerous HnVm or HenVm clusters. The S parameter induced by He/H ions sequential irradiation didn't change significantly compared to that by single He ion irradiation. However, obvious increment of the S parameter induced by H/He ion sequential irradiation is higher than that induced by singe H ion irradiation. The binding energy of HnVmHe is larger than HenVmH, and it is difficult for subsequent H ions irradiation to decompose the HenVm complexes. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11505192] ; National Natural Science Foundation of China[U1732265] ; National Natural Science Foundation of China[11705046] ; National Natural Science Foundation of China[11775162] ; National Natural Science Foundation of China[11775236] ; Science and Technology on Surface Physics and Chemistry Laboratory[020204417]
WOS关键词	VACANCY-COMPLEXES ; IRRADIATION ; HYDROGEN ; HELIUM ; FE ; EVOLUTION ; IRON ; BEHAVIOR ; STEEL ; IONS
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000500777900007
资助机构	National Natural Science Foundation of China ; Science and Technology on Surface Physics and Chemistry Laboratory
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/141244]
专题	中国科学院近代物理研究所
通讯作者	Jin, Shuoxue; Wang, Dandan
作者单位	1.Henan Univ Sci & Technol, Sch Phys & Engn, Luoyang 471023, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Multidisciplinary Res Div, Beijing 100049, Peoples R China 3.Wuhan Univ, Sch Phys & Technol, Key Lab Artificial Micro & Nanostruct, Minist Educ, Wuhan 430072, Hubei, Peoples R China 4.Kyoto Univ, Inst Integrated Radiat & Nucl Sci, Kumatori, Osaka 5900494, Japan 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Lei,Jin, Shuoxue,Zhang, Peng,et al. Effect of interaction between H and He on micro-defects in Fe9Cr alloy investigated by slow positron beam[J]. JOURNAL OF NUCLEAR MATERIALS,2019,526:5.
APA	Li, Lei.,Jin, Shuoxue.,Zhang, Peng.,Wang, Dandan.,Cao, Xingzhong.,...&Wang, Baoyi.(2019).Effect of interaction between H and He on micro-defects in Fe9Cr alloy investigated by slow positron beam.JOURNAL OF NUCLEAR MATERIALS,526,5.
MLA	Li, Lei,et al."Effect of interaction between H and He on micro-defects in Fe9Cr alloy investigated by slow positron beam".JOURNAL OF NUCLEAR MATERIALS 526(2019):5.