IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Liquid-Air Interface Corrosion of A537 Steel in High Level Liquid Radioactive Waste Simulant in a Sealed Container
Xu, Weichen1,2,3,4; Zhang, Binbin1,2,4; Yang, Lihui1,2,4; Li, Tiantian1,2; Li, Yantao1,2,4
2019-01-10
Source PublicationJOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
Volume166Issue:2Pages:C33-C41
Corresponding AuthorXu, Weichen(w.xu@qdio.ac.cn) ; Li, Yantao(ytli@qdio.ac.cn)
AbstractLiquid-air interface (LAI) corrosion is regarded as a potential issue for interim storage tanks of high level liquid radioactive waste. Insightful studies have been carried out and several hypotheses have been proposed so far, while none has been directly confirmed experimentally. A sealed container has been developed to investigate the effect of atmosphere on LAI corrosion of partially immersed A537 steels, in which the composition and temperature of air can be changed accordingly, i.e. CO2 concentration varied between 0.05 wt% (natural air) and 1.97 wt%, and temperature varied between 25 degrees C and 34 degrees C. It has been found that the pitting initiation process under both anodic polarization and free immersion conditions can be largely accelerated by the increase of CO2 concentration. More importantly, a planar pH electrode has been applied to measure pH at the interface during anodic polarization and free immersion, and the occurrence of LAI corrosion can be correlated with the same interface pH at a certain temperature regardless of CO2 concentration, indicating a "critical pH" for LAI corrosion determined by this method. This finding suggests that LAI corrosion in high level liquid radioactive waste may be investigated through determination of a critical pH in certain circumstances. (C) The Author(s) 2019. Published by ECS.
DOI10.1149/2.0421902jes
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51501180] ; Applied Basic Research Program of Nantong[GY12017020]
WOS Research AreaElectrochemistry ; Materials Science
WOS SubjectElectrochemistry ; Materials Science, Coatings & Films
WOS IDWOS:000455470800002
PublisherELECTROCHEMICAL SOC INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/160655
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorXu, Weichen; Li, Yantao
Affiliation1.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Res Dev Ctr Marine Sci & Technol, Inst Oceanol, Nantong 226019, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xu, Weichen,Zhang, Binbin,Yang, Lihui,et al. Liquid-Air Interface Corrosion of A537 Steel in High Level Liquid Radioactive Waste Simulant in a Sealed Container[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2019,166(2):C33-C41.
APA Xu, Weichen,Zhang, Binbin,Yang, Lihui,Li, Tiantian,&Li, Yantao.(2019).Liquid-Air Interface Corrosion of A537 Steel in High Level Liquid Radioactive Waste Simulant in a Sealed Container.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,166(2),C33-C41.
MLA Xu, Weichen,et al."Liquid-Air Interface Corrosion of A537 Steel in High Level Liquid Radioactive Waste Simulant in a Sealed Container".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 166.2(2019):C33-C41.
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