Numerical Approach for Atmospheric Corrosion Monitoring Based on EIS of a Weathering Steel

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	Numerical Approach for Atmospheric Corrosion Monitoring Based on EIS of a Weathering Steel
	C.; Hao Thee, L.; Dong, J. H.; Mu, X.; Ke, W.
	2015
发表期刊	Acta Metallurgica Sinica-English Letters
ISSN	1006-7191
卷号	28 期号:2 页码:261-271
摘要	Electrochemical impedance spectroscopy (EIS) and film thickness measurement have been employed to study the atmospheric corrosion of a weathering steel covered with a thin electrolyte layer in a simulated coastal industrial atmosphere. The results indicate that the corrosion rate is a function of the covered electrolyte thickness and the wet/dry cycle. Within each wet/dry cycle, the increased corrosion rate is related to the increased Cl- and SO42- concentration and an enhancement of oxygen diffusion rate with the evaporation of the electrolyte. In addition, the corrosion rate increases during the initial corrosion stage and then decreases as the wet/dry cycle proceeds. Moreover, one mathematical approach based on the numerical integration method to obtain corrosion mass loss of steel from the measurements of EIS has been developed, and this would be useful for the development of indoor simulated atmospheric corrosion tests.
部门归属	[thee, ch ; hao, long ; dong, jun-hua ; mu, xin ; ke, wei] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; dong, jh (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; jhdong@imr.ac.cn
关键词	Weathering Steel Atmospheric Corrosion Electrochemical Impedance Spectroscopy Steel Rust Coastal-industrial Atmosphere Low-alloy Steel Coastal-industrial Atmosphere Dilute Electrolyte Layers Wet-dry Conditions Impedance Measurements Anodic Processes Rust Iron Evolution Environment
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73933
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C.,Hao Thee, L.,Dong, J. H.,et al. Numerical Approach for Atmospheric Corrosion Monitoring Based on EIS of a Weathering Steel[J]. Acta Metallurgica Sinica-English Letters,2015,28(2):261-271.
APA	C.,Hao Thee, L.,Dong, J. H.,Mu, X.,&Ke, W..(2015).Numerical Approach for Atmospheric Corrosion Monitoring Based on EIS of a Weathering Steel.Acta Metallurgica Sinica-English Letters,28(2),261-271.
MLA	C.,et al."Numerical Approach for Atmospheric Corrosion Monitoring Based on EIS of a Weathering Steel".Acta Metallurgica Sinica-English Letters 28.2(2015):261-271.