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Study of corrosion-related defects of zirconium alloys with slow positron beam
Zhu, ZJ; Yao, MY; Shi, JJ; Yao, CL; Lu, EY; Cao, XZ; Wang, BY; Wu, YC; Lu EY(卢二阳); Cao XZ(曹兴忠); Wang BY(王宝义)
2018
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
EISSN1873-4820
Volume508Pages:12-19
SubtypeArticle
AbstractThe corrosion behavior of Zr-4 and N5 alloy specimens corroded in 0.01mol/L LiOH aqueous solution at 360 degrees C/18.6 MPa and in super heated steam at 400 degrees C/10.3 MPa for 1, 3 and 14 days were investigated by slow positron beam based Doppler broadening spectroscopy. Results showed that there was an evident interfacial layer with pre-existed vacancies and voids in uncorroded Zr-4 specimens, while in uncorroded N5 specimen, the interfacial defect layer can not be identified or a thin interfacial layer was only contained. When the specimens were corroded in super heated steam at 400 degrees C/10.3 MPa for a few days, the existence of the interface layer in the Zr-4 specimen would delay the diffusion rate of the oxygen atoms and decelerated the oxidation rate of the corrosion process. However, at very early stage of the corrosion, as Zr-4 and N5 specimens were corrded in 0.01mol/L LiOH aqueous solution at 360 degrees C/18.6 MPa, the effect of Li thorn accelerated the diffusion rate of the oxygen atoms, while the effect of the interface defect layer became a minor effect. (C) 2018 Elsevier B.V. All rights reserved.
KeywordPositron annihilation Defect Zircaloy Corrosion
DOI10.1016/j.jnucmat.2018.05.022
WOS KeywordANNIHILATION SPECTROSCOPY ; ZR ALLOYS ; OXIDE LAYERS ; FILMS ; ZIRCALOY-4 ; OXIDATION ; ALUMINUM ; WATER ; NB ; MICROSTRUCTURE
Indexed BySCI ; EI
Language英语
WOS Research AreaMaterials Science ; Nuclear Science & Technology
WOS SubjectMaterials Science, Multidisciplinary ; Nuclear Science & Technology
WOS IDWOS:000439134500002
EI Accession Number20182105219667
ADS Bibcode2018JNuM..508...12Z
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286136
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Zhu, ZJ,Yao, MY,Shi, JJ,et al. Study of corrosion-related defects of zirconium alloys with slow positron beam[J]. JOURNAL OF NUCLEAR MATERIALS,2018,508:12-19.
APA Zhu, ZJ.,Yao, MY.,Shi, JJ.,Yao, CL.,Lu, EY.,...&王宝义.(2018).Study of corrosion-related defects of zirconium alloys with slow positron beam.JOURNAL OF NUCLEAR MATERIALS,508,12-19.
MLA Zhu, ZJ,et al."Study of corrosion-related defects of zirconium alloys with slow positron beam".JOURNAL OF NUCLEAR MATERIALS 508(2018):12-19.
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