Effect of chloride and bicarbonate ions on corrosion behavior of carbon steel in anaerobic environment

doi:10.1016/j.mtcomm.2023.106873

IMR OpenIR

	Effect of chloride and bicarbonate ions on corrosion behavior of carbon steel in anaerobic environment
	Gao, Mingyang 1,2; Wang, Haitao 3; Han, En-Hou 3,4
通讯作者	Wang, Haitao(htwang@icost.ac.cn) ; Han, En-Hou(ehhan@icost.ac.cn)
	2023-08-01
发表期刊	MATERIALS TODAY COMMUNICATIONS
卷号	36 页码:10
摘要	This investigation was initiated to study the influence of chloride ions and bicarbonate ions on the corrosion behavior of Q345 carbon steel in anaerobic condition by electrochemical tests and surface characterizations. It was found that low concentration of Cl- tends to cause general corrosion of sample while high concentration of Cl- induces localized corrosion because of its migration to the corrosion defects, leading to the accelerated dissolution of matrix. The existence of individual HCO3- results in the passivation of sample. When Cl- co-exists in the solution, the increase concentration of HCO3- results in an overall decrease of corrosion pit depth and the disappearance of localized corrosion, revealing the inhibitory effect of HCO3- on corrosion due to the formation of dense FeCO3 film. This corrosion suppression behavior of HCO3- is opposite to its synergistic effect on pitting with Cl- in aerobic environment.
关键词	Carbon steel Cl HCO3 - Localized corrosion Anaerobic
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; LingChuang Research Project of China National Nuclear Corporation
DOI	10.1016/j.mtcomm.2023.106873
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2021YFB3702200] ; National Natural Science Foundation of China[52293391] ; LingChuang Research Project of China National Nuclear Corporation
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001067069200001
出版者	ELSEVIER
引用统计	被引频次：7[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/321006/179211
专题	中国科学院金属研究所
通讯作者	Wang, Haitao; Han, En-Hou
作者单位	1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China 4.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China
推荐引用方式 GB/T 7714	Gao, Mingyang,Wang, Haitao,Han, En-Hou. Effect of chloride and bicarbonate ions on corrosion behavior of carbon steel in anaerobic environment[J]. MATERIALS TODAY COMMUNICATIONS,2023,36:10.
APA	Gao, Mingyang,Wang, Haitao,&Han, En-Hou.(2023).Effect of chloride and bicarbonate ions on corrosion behavior of carbon steel in anaerobic environment.MATERIALS TODAY COMMUNICATIONS,36,10.
MLA	Gao, Mingyang,et al."Effect of chloride and bicarbonate ions on corrosion behavior of carbon steel in anaerobic environment".MATERIALS TODAY COMMUNICATIONS 36(2023):10.