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Investigation of vacancy-type defects in helium irradiated FeCrNi alloy by slow positron beam
Lu EY(卢二阳); Cao XZ(曹兴忠); Jin SX(靳硕学); Zhang CX(张春雄); 张鹏(正); Zhu T(朱特); Gong YH(龚毅豪); Wang BY(王宝义); Lu, EY; Cao, XZ; Jin, SX; Zhang, P; Zhang, CX; Yang, J; Wu, YR; Guo, LP; Wang, BY
2015
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
EISSN1873-4820
Volume458Pages:240-244
Corresponding Author王宝义
SubtypeArticle
AbstractThe evolution of microstruture for Fe16.7Cr14.5Ni model alloy and 316 stainless steel irradiated with 140 keV He ions were studied by Positron annihilation spectroscopy. The fluences were 1 x 10(16) and 5 x 10(16) He ions/cm(2). The irradiation temperature was room temperature and 573 K, respectively. The variation of S parameter-incident positron energy profile indicated that large amount of vacancy-type defects formed after He ion irradiation. Meanwhile, helium atoms deposited in bulk and certain amount of He-vacancy complexes were formed. The vacancy-type defects could be the major defects in track region and He-vacancy complexes would be the main defects in cascade region. The vacancy-type defects could migrate and aggregate to form vacancy clusters and even microvoids at elevated temperature irradiation. The diffusion mechanism of helium atoms might be changed at different irradiation temperature. (C) 2014 Elsevier B.V. All rights reserved.
Subject AreaMaterials Science; Nuclear Science & Technology; Mining & Mineral Processing
DOI10.1016/j.jnucmat.2014.12.070
Indexed BySCI ; ADS ; EI ; CA
Language英语
WOS Research AreaMaterials Science, Multidisciplinary ; Nuclear Science & Technology
WOS SubjectMaterials Science ; Nuclear Science & Technology
WOS IDWOS:000349169600028
ADS Bibcode2015JNuM..458..240L
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015JNuM..458..240L
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015JNuM..458..240L/citations
Citation statistics
Cited Times:19 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228083
Collection多学科研究中心
Recommended Citation
GB/T 7714
Lu EY,Cao XZ,Jin SX,et al. Investigation of vacancy-type defects in helium irradiated FeCrNi alloy by slow positron beam[J]. JOURNAL OF NUCLEAR MATERIALS,2015,458:240-244.
APA 卢二阳.,曹兴忠.,靳硕学.,张春雄.,张鹏.,...&Wang, BY.(2015).Investigation of vacancy-type defects in helium irradiated FeCrNi alloy by slow positron beam.JOURNAL OF NUCLEAR MATERIALS,458,240-244.
MLA 卢二阳,et al."Investigation of vacancy-type defects in helium irradiated FeCrNi alloy by slow positron beam".JOURNAL OF NUCLEAR MATERIALS 458(2015):240-244.
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