Corrosion behaviour of weathering steel in diluted Qinghai salt lake water in a laboratory accelerated test that involved cyclic wet/dry conditions

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	Corrosion behaviour of weathering steel in diluted Qinghai salt lake water in a laboratory accelerated test that involved cyclic wet/dry conditions
	J. Wang; Z. Y. Wang; W. Ke
	2010
发表期刊	Materials Chemistry and Physics
ISSN	0254-0584
卷号	124 期号:2-3 页码:952-958
摘要	The corrosion behaviour of CortenA weathering steel has been investigated using a laboratory accelerated test that involved cyclic wet/dry conditions in Qinghai salt lake water diluted 30 times The characteristics of the rust layers on tested samples were observed by SEM and EPMA analyzed by IRS and XRD and studied by polarization and EIS measurements The weight loss was almost linear indicating that the rust layer had no retarding effect on the corrosion process The crystalline components of the rust layers consisted primarily of beta-FeOOH magnetite (Fe(3)O(4)) and gamma-FeOOH As the corrosion proceeded the amount of beta-FeOOH decreased while that of magnetite and gamma-FeOOH increased XRD EDAX and EPMA indicated that the complex corrosion products magnesioferrite (MgFe(2)O(4)) and iowaite (Mg(4)Fe(OH)(8)OCl 4H(2)O) probably existed in the rust layer in which case they will have had an important Influence on the protectiveness of the rust layer The results of electrochemical measurements showed that the rust layer exhibited high reduction reactivity which facilitated the corrosion of weathering steel in the wetting process The large rust capacitance and small rust resistance indicated that the rust layer had a loose and porous structure which provided poor protection (c) 2010 Elsevier B V All rights reserved
部门归属	[wang, j.; wang, z. y.; ke, w.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 710016, peoples r china.;wang, zy (reprint author), chinese acad sci, inst met res, state key lab corros & protect, wencui rd 62, shenyang 710016, peoples r china
关键词	Elements Corrosion Test Electrochemical Techniques Electron Probe Low-alloy Steels Atmospheric Corrosion Carbon-steel Electrochemical Impedance Room-temperature Rust Layers Iron Mechanism Products Environment
URL	查看原文
WOS记录号	WOS:000284434100013
引用统计	被引频次：47[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31498
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Wang,Z. Y. Wang,W. Ke. Corrosion behaviour of weathering steel in diluted Qinghai salt lake water in a laboratory accelerated test that involved cyclic wet/dry conditions[J]. Materials Chemistry and Physics,2010,124(2-3):952-958.
APA	J. Wang,Z. Y. Wang,&W. Ke.(2010).Corrosion behaviour of weathering steel in diluted Qinghai salt lake water in a laboratory accelerated test that involved cyclic wet/dry conditions.Materials Chemistry and Physics,124(2-3),952-958.
MLA	J. Wang,et al."Corrosion behaviour of weathering steel in diluted Qinghai salt lake water in a laboratory accelerated test that involved cyclic wet/dry conditions".Materials Chemistry and Physics 124.2-3(2010):952-958.