Influence of Deteriorated Bentonite Sediments on the Corrosion Behavior of NiCu Low Alloy Steel

doi:10.1007/s40195-021-01278-2

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	Influence of Deteriorated Bentonite Sediments on the Corrosion Behavior of NiCu Low Alloy Steel
	Wei, Xin 1; Dong, Junhua 1; Sun, Yupeng 1,3; Chen, Nan 1; Ren, Qiying 1; Dhakal, Madhusudan 1; Li, Xiaofang 1; Ke, Wei 2
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2021-07-23
页码	12
关键词	Low alloy steel Bentonite Corrosion behavior Corrosion products Electrochemical impedance spectroscopy (EIS)
ISSN号	1006-7191
DOI	10.1007/s40195-021-01278-2
通讯作者	Dong, Junhua(jhdong@imr.ac.cn)
英文摘要	The corrosion evolution of steel disposal container largely depends on the evolution of surrounding bentonite environment in the long-term geological disposal of high-level radioactive wastes. This study focused on the influence of the deteriorated bentonite sediments on the corrosion behavior of NiCu low alloy steel in the top supernatant and bottom slurry formed by Gaomiaozi bentonite and 0.05 M NaHCO3 + 0.1 M NaCl + 0.1 M Na2SO4 solution. In the top supernatant, the cathodic process of the steel corrosion was transformed from the reduction in oxygen to the reduction in ferric corrosion products with time as same as that in the blank solution. While in the bottom bentonite slurry, the cathodic process always maintained as the hydrogen evolution reaction due to the coverage of more bentonite sediments. Meanwhile, the corrosion rate of NiCu steel was obviously decreased. In addition, the localized corrosion tendency of the steel could also be reduced by the large amount of deteriorated bentonite sediments.
资助项目	National Natural Science Foundation of China[U1867216] ; National Natural Science Foundation of China[51701222] ; National Natural Science Foundation of China[51471175]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000676046800001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/159854]
专题	金属研究所_中国科学院金属研究所
通讯作者	Dong, Junhua
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Environm Corros Ctr Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wei, Xin,Dong, Junhua,Sun, Yupeng,et al. Influence of Deteriorated Bentonite Sediments on the Corrosion Behavior of NiCu Low Alloy Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:12.
APA	Wei, Xin.,Dong, Junhua.,Sun, Yupeng.,Chen, Nan.,Ren, Qiying.,...&Ke, Wei.(2021).Influence of Deteriorated Bentonite Sediments on the Corrosion Behavior of NiCu Low Alloy Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,12.
MLA	Wei, Xin,et al."Influence of Deteriorated Bentonite Sediments on the Corrosion Behavior of NiCu Low Alloy Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):12.