IHEP OpenIR  > 多学科研究中心
Helium self-trapping and diffusion behaviors in deformed 316L stainless steel exposed to high flux and low energy helium plasma
Gong YH(龚毅豪); Jin SX(靳硕学); Zhu T(朱特); Cao XZ(曹兴忠); Wang BY(王宝义); Gong, YH; Jin, SX; Zhu, T; Cheng, L; Cao, XZ; You, L; Lu, GH; Guo, LP; Wang, BY
2018
Source PublicationNUCLEAR FUSION
ISSN0029-5515
EISSN1741-4326
Volume58Issue:4Pages:46011
SubtypeArticle
AbstractA large number of dislocation networks were introduced in to 316L stainless steel by cold rolling. Subsequently, low energy (40 eV) helium ions were implanted by exposing the steel to helium plasma. Thermal desorption and positron annihilation spectroscopy were used to study the behavior of helium in the presence of dislocations, with emphasis on helium self-trapping and migration behaviors. Helium desorption behaviour from different helium trapping states was measured by the thermal desorption spectroscopy. Most of the helium desorbed from the HemVn clusters, and the corresponding desorption peak is located at similar to 650K. The desorption peak from helium-dislocation clusters (HemD) is at approximately 805 K. The effect of annealing on the defect evolution was investigated by positron annihilation spectroscopy. For the specimen exposed to helium plasma without displacement damage, the increment of S parameter meant the existence of helium self-trapping behavior (HemVn). Helium atoms could diffuse two to three orders of magnitude deeper than the implantation depth calculated by SRIM. The diffusing helium atoms were gradually trapped by dislocation lines and formed HemD. Elevated temperatures enhance the self-trapping behavior and cause helium atoms to dissociate/desorb from the HemVn clusters, increasing the S parameters at 473-673 K. The gradual recovery of vacancies in the clusters decreased the S parameter above 673 K.
Keywordhelium self-trapping HemVn complex helium diffusion dislocation 316L steel
DOI10.1088/1741-4326/aaad19
WOS KeywordVACANCY-TYPE DEFECTS ; POSITRON-ANNIHILATION ; EDGE DISLOCATIONS ; ION IRRADIATION ; MODEL ALLOYS ; ALPHA-IRON ; FE ; CLUSTERS ; NI ; EVOLUTION
Indexed BySCI ; EI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
WOS IDWOS:000425980900001
EI Accession Number20181504994440
ADS Bibcode2018NucFu..58d6011G
Citation statistics
Cited Times:7 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285676
Collection多学科研究中心
Corresponding AuthorJin SX(靳硕学)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Gong YH,Jin SX,Zhu T,et al. Helium self-trapping and diffusion behaviors in deformed 316L stainless steel exposed to high flux and low energy helium plasma[J]. NUCLEAR FUSION,2018,58(4):46011.
APA 龚毅豪.,靳硕学.,朱特.,曹兴忠.,王宝义.,...&Wang, BY.(2018).Helium self-trapping and diffusion behaviors in deformed 316L stainless steel exposed to high flux and low energy helium plasma.NUCLEAR FUSION,58(4),46011.
MLA 龚毅豪,et al."Helium self-trapping and diffusion behaviors in deformed 316L stainless steel exposed to high flux and low energy helium plasma".NUCLEAR FUSION 58.4(2018):46011.
Files in This Item:
File Name/Size DocType Version Access License
20180190.pdf(1967KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[龚毅豪]'s Articles
[靳硕学]'s Articles
[朱特]'s Articles
Baidu academic
Similar articles in Baidu academic
[龚毅豪]'s Articles
[靳硕学]'s Articles
[朱特]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[龚毅豪]'s Articles
[靳硕学]'s Articles
[朱特]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.