Rusting Evolution of MnCuP Weathering Steel Submitted to Simulated Industrial Atmospheric Corrosion

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	Rusting Evolution of MnCuP Weathering Steel Submitted to Simulated Industrial Atmospheric Corrosion
	L. Hao; S. X. Zhang; J. H. Dong; W. Ke
	2012
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	43A 期号:5 页码:1724-1730
摘要	The rusting evolution of MnCuP weathering steel in a simulated industrial atmosphere as a function of corrosion duration was investigated by corrosion weight gain, scanning electron microscopy, X-ray diffraction, and electrochemical methods. The results indicate that the corrosion kinetics is related closely to the rust composition and electrochemical properties. The corrosion rate is higher during the first corrosion stage, and it is lower during the second corrosion stage. During the first corrosion stage, the rust layer is in low density, discontinuous, and loose, with a lower relative abundance of alpha-FeOOH. During the second corrosion stage, a compact and protective inner rust layer forms with a higher relative abundance of alpha-FeOOH, contributing to enhanced rust layer resistance. The rust initially enhances and then stabilizes the cathodic process, but the anodic process tends to be inhibited by the protective rust layer. Electrochemical impedance spectroscopy tests indicate that it is more scientific to evaluate the rust layer protective ability by charge transfer resistance.
部门归属	[hao, long; dong, junhua; ke, wei] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china. [zhang, sixun] northeastern univ, coll mat & met, shenyang 110016, peoples r china. [zhang, sixun] tech ctr laiwu steel grp ltd, laiwu 271104, peoples r china.;hao, l (reprint author), chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;jhdong@imr.ac.cn
关键词	Environments Mechanism
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/59991
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Hao,S. X. Zhang,J. H. Dong,et al. Rusting Evolution of MnCuP Weathering Steel Submitted to Simulated Industrial Atmospheric Corrosion[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2012,43A(5):1724-1730.
APA	L. Hao,S. X. Zhang,J. H. Dong,&W. Ke.(2012).Rusting Evolution of MnCuP Weathering Steel Submitted to Simulated Industrial Atmospheric Corrosion.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,43A(5),1724-1730.
MLA	L. Hao,et al."Rusting Evolution of MnCuP Weathering Steel Submitted to Simulated Industrial Atmospheric Corrosion".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 43A.5(2012):1724-1730.