Liquid-Air Interface Corrosion of A537 Steel in High Level Liquid Radioactive Waste Simulant in a Sealed Container

doi:10.1149/2.0421902jes

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	Liquid-Air Interface Corrosion of A537 Steel in High Level Liquid Radioactive Waste Simulant in a Sealed Container
	Xu, Weichen 1,2,3,4; Zhang, Binbin1,2,4 ; Yang, Lihui 1,2,4; Li, Tiantian 1,2; Li, Yantao 1,2,4
刊名	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
	2019-01-10
卷号	166 期号:2 页码:C33-C41
ISSN号	0013-4651
DOI	10.1149/2.0421902jes
通讯作者	Xu, Weichen(w.xu@qdio.ac.cn) ; Li, Yantao(ytli@qdio.ac.cn)
英文摘要	Liquid-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.
资助项目	National Natural Science Foundation of China[51501180] ; Applied Basic Research Program of Nantong[GY12017020]
WOS研究方向	Electrochemistry ; Materials Science
语种	英语
出版者	ELECTROCHEMICAL SOC INC
WOS记录号	WOS:000455470800002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/160654]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Xu, Weichen; Li, Yantao
作者单位	1.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
推荐引用方式 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.