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Characterization of helium-vacancy complexes in He-ions implanted Fe9Cr by using positron annihilation spectroscopy
Zhu T(朱特); Jin SX(靳硕学); 张鹏(正); Song LG(宋力刚); Lian XY(连相宇); Yu RS(于润升); Cao XZ(曹兴忠); Wang BY(王宝义); Zhu, T; Jin, SX; Zhang, P; Song, LG; Lian, XY; Fan, P; Zhang, QL; Yuan, DQ; Wu, HBA; Yu, RS; Cao, XZ; Xu, Q; Wang, BY
2018
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
EISSN1873-4820
Volume505Pages:69-72
SubtypeArticle
AbstractThe 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.
KeywordHelium-vacancy complexes Alloy Bubble nucleation Positron annihilation technique
DOI10.1016/j.jnucmat.2018.03.048
WOS KeywordACTIVATION FERRITIC/MARTENSITIC STEEL ; MICROSTRUCTURAL EVOLUTION ; MARTENSITIC STEEL ; TEMPERATURE ; DEPENDENCE ; PROGRESS ; FUSION ; F82H
Indexed BySCI ; EI
Language英语
WOS Research AreaMaterials Science ; Nuclear Science & Technology
WOS SubjectMaterials Science, Multidisciplinary ; Nuclear Science & Technology
WOS IDWOS:000432845800009
EI Accession Number20181505000934
ADS Bibcode2018JNuM..505...69Z
Citation statistics
Cited Times:6 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285944
Collection多学科研究中心
Corresponding AuthorCao XZ(曹兴忠)
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
Zhu T,Jin SX,Zhang P,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 朱特.,靳硕学.,张鹏.,宋力刚.,连相宇.,...&Wang, BY.(2018).Characterization of helium-vacancy complexes in He-ions implanted Fe9Cr by using positron annihilation spectroscopy.JOURNAL OF NUCLEAR MATERIALS,505,69-72.
MLA 朱特,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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