Effect of Asymmetric Epoxy Coating/Metal Electrodes on the Electrochemical Noise Measurements Under Marine Alternating Hydrostatic Pressure

doi:10.3390/coatings9120852

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	Effect of Asymmetric Epoxy Coating/Metal Electrodes on the Electrochemical Noise Measurements Under Marine Alternating Hydrostatic Pressure
	Meng, Fandi 2; Liu, Yushan 2; Liu, Li 2; Cui, Yu 1; Wang, Fuhui 1,2
刊名	COATINGS
	2019-12-01
卷号	9 期号:12 页码:13
关键词	epoxy coating electrochemical noise asymmetric electrode shot noise analysis wavelet analysis alternating hydrostatic pressure
DOI	10.3390/coatings9120852
通讯作者	Liu, Li(liuli@mail.neu.edu.cn)
英文摘要	Electrochemical noise (EN) is expected to be an in-situ evaluation method for coating performance in the real deep-ocean environment. The asymmetric factors of working electrodes (WEs) in EN configuration, including coating area, coating thickness, and coating impedance, were considered under marine alternating hydrostatic pressure (AHP) condition. The effect of WE asymmetry was discussed mainly by EN time records, wavelet analysis and shot noise method. The results indicated that coating impedance is the most important factor, and the coating with higher impedance contributes more to current noise in a pair of electrodes. The reason of asymmetry influence on EN measurements is mainly by the variation of average charge of current sources but not the current source frequency during the initial period of coating failure process. When the obvious corrosion of metal substrate happens, the corresponding EN proportion relationship between coating/metal WEs may be not exist.
资助项目	National Natural Science Foundation of China[51622106] ; Fundamental Research Funds for the Central Universities[N170203005] ; China Postdoctoral Science Foundation[2018M640256]
WOS研究方向	Materials Science
语种	英语
出版者	MDPI
WOS记录号	WOS:000506682800080
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136725]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Li
作者单位	1.Chinese Acad Sci, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China 2.Northeastern Univ, Shenyang Natl Lab Mat Sci, Wenhua Rd 3-11, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Meng, Fandi,Liu, Yushan,Liu, Li,et al. Effect of Asymmetric Epoxy Coating/Metal Electrodes on the Electrochemical Noise Measurements Under Marine Alternating Hydrostatic Pressure[J]. COATINGS,2019,9(12):13.
APA	Meng, Fandi,Liu, Yushan,Liu, Li,Cui, Yu,&Wang, Fuhui.(2019).Effect of Asymmetric Epoxy Coating/Metal Electrodes on the Electrochemical Noise Measurements Under Marine Alternating Hydrostatic Pressure.COATINGS,9(12),13.
MLA	Meng, Fandi,et al."Effect of Asymmetric Epoxy Coating/Metal Electrodes on the Electrochemical Noise Measurements Under Marine Alternating Hydrostatic Pressure".COATINGS 9.12(2019):13.