EIS evaluation on the degradation behavior of rust-preventive oil coating exposure to NaCl electrolyte

doi:10.1016/j.electacta.2024.144359

IMR OpenIR

	EIS evaluation on the degradation behavior of rust-preventive oil coating exposure to NaCl electrolyte
	Zhang, Hongyang 1,2; Hao, Long 2; Wang, Jianqiu 2; Zhang, Song 1; Zhang, Chunhua 1; Ke, Wei 2
通讯作者	Hao, Long(chinahaolong@126.com) ; Zhang, Chunhua(zhangch5858@126.com)
	2024-07-10
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	492 页码:9
摘要	The traditional evaluation on anti -corrosion performance of a rust -preventive oil is often time-consuming and of high cost. In this investigation, electrochemical impedance spectroscopy (EIS) has been employed to understand the degradation behavior of rust -preventive oil in contact with NaCl electrolyte, with a focus on analyzing the electrochemical responses that correspond to a different frequency range in the obtained EIS spectra. The results indicate that the obtained EIS spectra can be generally divided into four frequency ranges. The high -frequency range is influenced by the continuous seepage of NaCl electrolyte, and the sub -high frequency range can reflect the presence of reversed micelle formed by corrosion inhibitor molecules and water molecules. Besides, the midfrequency range is associated with the adsorption process of corrosion inhibitor molecules at the oil-film/metal interface, and the low -frequency range is associated with the diffusion process of dissolved ferrous ions. An extended immersion will result in a continuous seepage of electrolyte into rust -preventive oil coating and degrade the adsorption of corrosion inhibitor molecules, leading to a poor corrosion protection performance of the oil coating. Therefore, it is believed that the proposed design can provide a method in evaluating the degradation behavior and corrosion protection performance of rust -preventive oil to underlying steel substrate by EIS measurement under a lower amplitude.
关键词	Electrochemical impedance spectroscopy Rust -preventive oil Inhibitor Corrosion degradation Corrosion electrolyte
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences
DOI	10.1016/j.electacta.2024.144359
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04030400]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:001241189500001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187017
专题	中国科学院金属研究所
通讯作者	Hao, Long; Zhang, Chunhua
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hongyang,Hao, Long,Wang, Jianqiu,et al. EIS evaluation on the degradation behavior of rust-preventive oil coating exposure to NaCl electrolyte[J]. ELECTROCHIMICA ACTA,2024,492:9.
APA	Zhang, Hongyang,Hao, Long,Wang, Jianqiu,Zhang, Song,Zhang, Chunhua,&Ke, Wei.(2024).EIS evaluation on the degradation behavior of rust-preventive oil coating exposure to NaCl electrolyte.ELECTROCHIMICA ACTA,492,9.
MLA	Zhang, Hongyang,et al."EIS evaluation on the degradation behavior of rust-preventive oil coating exposure to NaCl electrolyte".ELECTROCHIMICA ACTA 492(2024):9.