Effects of the IR Drop on the Electrochemical Corrosion of X80 Pipeline Steel in Different Solutions

doi:10.3390/coatings12091314

IMR OpenIR

	Effects of the IR Drop on the Electrochemical Corrosion of X80 Pipeline Steel in Different Solutions
	Bai, Yunlong 1,2; Xu, Jin 1,2,3; Wei, Boxin 1,2; Sun, Cheng 1,2,3
通讯作者	Xu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
	2022-09-01
发表期刊	COATINGS
卷号	12 期号:9 页码:18
摘要	Polarization curves are popularly used in many investigations; however, some wrong results are obtained when inexperienced researchers do not deeply understand electrochemical processes. In this study, the effects of the IR drop (Deviation due to I (current) and R (resistance)) and scanning direction on polarization curves were investigated. Three different test methods were used to test the polarization curve of X80 pipeline steel in five kinds of solutions. The different scanning directions led to differences in the cathodic polarization curves. In addition, the effect of IR drop on the Tafel curve in acidic solutions is significantly greater than in neutral and alkaline solutions. There is a large effect of the IR drop on shapes and fitting results of polarization curves in acidic solutions, and the IR drop must be considered for the fitting of curves. Scanning direction has an influence on the shape of polarization curves when a layer of corrosion products is formed on the steel surface, and a novel two-electrode coupon was introduced to solve this problem.
关键词	polarization curve IR drop electrochemical corrosion X80 steel
资助者	National Natural Science Foundation of China
DOI	10.3390/coatings12091314
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771213] ; National Natural Science Foundation of China[51871228]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000858144200001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175413
专题	中国科学院金属研究所
通讯作者	Xu, Jin; Sun, Cheng
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Liaoning Shenyang Soil & Atmosphere Mat Corros Na, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Bai, Yunlong,Xu, Jin,Wei, Boxin,et al. Effects of the IR Drop on the Electrochemical Corrosion of X80 Pipeline Steel in Different Solutions[J]. COATINGS,2022,12(9):18.
APA	Bai, Yunlong,Xu, Jin,Wei, Boxin,&Sun, Cheng.(2022).Effects of the IR Drop on the Electrochemical Corrosion of X80 Pipeline Steel in Different Solutions.COATINGS,12(9),18.
MLA	Bai, Yunlong,et al."Effects of the IR Drop on the Electrochemical Corrosion of X80 Pipeline Steel in Different Solutions".COATINGS 12.9(2022):18.