Effects of Aerobic and Anoxic Conditions on the Corrosion Behavior of NiCu Low Alloy Steel in the Simulated Groundwater Solutions

doi:10.1007/s40195-022-01490-8

IMR OpenIR

	Effects of Aerobic and Anoxic Conditions on the Corrosion Behavior of NiCu Low Alloy Steel in the Simulated Groundwater Solutions
	Wei, Xin 1; Sun, Yupeng 1,2; Dong, Junhua 1; Chen, Nan 1; Ren, Qiying 1; Ke, Wei 3
通讯作者	Dong, Junhua(jhdong@imr.ac.cn)
	2022-12-04
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	13
摘要	The present work focused on investigating the corrosion behavior of NiCu low alloy steel in 0.05 M NaHCO3 solutions with different Cl- concentrations under the aerobic-anoxic condition. The results showed that NiCu steel tended to be pseudo-passivated in the solutions of 0.05 M NaHCO3 and 0.05 M NaHCO3 + 0.01 M NaCl exposed to air. The cathodic process transformed from oxygen reduction to the common reduction of oxygen and alpha-FeOOH, while the anodic process was the iron dissolution. As Cl- increased to 0.1 M, the steel tended to be activity dissolution. Due to the blocking effect of rust layer on the oxygen, the cathodic process transformed to the reduction of alpha-FeOOH. After the solutions were deoxidized, the cathodic process was controlled by only rust reduction. Meanwhile, both the cathodic process and anodic process of NiCu steel corrosion were significantly inhibited. During the whole aerobic-anoxic immersion, the corrosion rate of NiCu steel increased with Cl- concentration. It was not only related to the promotion of Cl- on the anodic dissolution of steel, but also related to the cathodic reduction of more alpha-FeOOH generated, which could accelerate the cathodic process.
关键词	Low alloy steel Aerobic-anoxic condition Corrosion behavior Corrosion products Electrochemical measurements
资助者	National Natural Science Foundation of China
DOI	10.1007/s40195-022-01490-8
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; [U1867216] ; [52173304] ; [51701222]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000893504600001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176071
专题	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.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Environm Corros Ctr Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wei, Xin,Sun, Yupeng,Dong, Junhua,et al. Effects of Aerobic and Anoxic Conditions on the Corrosion Behavior of NiCu Low Alloy Steel in the Simulated Groundwater Solutions[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:13.
APA	Wei, Xin,Sun, Yupeng,Dong, Junhua,Chen, Nan,Ren, Qiying,&Ke, Wei.(2022).Effects of Aerobic and Anoxic Conditions on the Corrosion Behavior of NiCu Low Alloy Steel in the Simulated Groundwater Solutions.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA	Wei, Xin,et al."Effects of Aerobic and Anoxic Conditions on the Corrosion Behavior of NiCu Low Alloy Steel in the Simulated Groundwater Solutions".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):13.