Effect of length of gas/liquid/solid three-phase boundary zone on cathodic and corrosion behavior of metals

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	Effect of length of gas/liquid/solid three-phase boundary zone on cathodic and corrosion behavior of metals
	J. Jiang; J. Wang; Y. H. Lu; J. Z. Hu
	2009
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	54 期号:5 页码:1426-1435
摘要	Liquid dispersion, depending on the length of gas/liquid/solid three-phase boundary (TPB) zone of dispersed liquid on a metal surface, is an important property of liquid state influencing corrosion behavior of metals in gas/liquid/solid multiphase corrosion systems. The effect of TPB length on the cathode and corrosion process was studied using steady state polarization technique, electrochemical impedance spectroscopy (EIS) and linear polarization resistance (LPR) technique. It was found that both the cathodic limiting current density and corrosion current density linearly increased with increasing the TPB length, indicating that the cathodic and corrosion process in gas/liquid/solid multiphase corrosion systems not only depended on the thickness of liquid layer but also strongly depended on the dispersed liquid state on a metal surface. In addition, a model is developed to establish the relationship between the cathodic limiting current density and the TPB length. The simulation result is in good agreement with the experimental findings. The model is also useful for evaluating the effect of liquid dispersion on atmospheric corrosion rates. (C) 2008 Elsevier Ltd. All rights reserved.
部门归属	[jiang, jing; wang, jia; lu, yong-hong; hu, jie-zhen] ocean univ china, qingdao 266100, peoples r china. [wang, jia] state key lab corros & protect met, shenyang 110016, peoples r china.;wang, j (reprint author), ocean univ china, 238 songling rd, qingdao 266100, peoples r china;jwang@mail.ouc.edu.cn
关键词	Gas/liquid/solid Three-phase Boundary (Tpb)Zone Tpb Length Liquid Dispersion Cathodic Limiting Current Density Atmospheric Corrosion Rate Oxide Fuel-cells Thin Electrolyte Layers Electrochemical Impedance Spectroscopy Triple-phase-boundary Atmospheric Corrosion Polarization Curves Mathematical-model Moisture-content Carbon-steel Interfaces
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WOS记录号	WOS:000263006100007
引用统计	被引频次：55[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/321006/31997
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Jiang,J. Wang,Y. H. Lu,et al. Effect of length of gas/liquid/solid three-phase boundary zone on cathodic and corrosion behavior of metals[J]. Electrochimica Acta,2009,54(5):1426-1435.
APA	J. Jiang,J. Wang,Y. H. Lu,&J. Z. Hu.(2009).Effect of length of gas/liquid/solid three-phase boundary zone on cathodic and corrosion behavior of metals.Electrochimica Acta,54(5),1426-1435.
MLA	J. Jiang,et al."Effect of length of gas/liquid/solid three-phase boundary zone on cathodic and corrosion behavior of metals".Electrochimica Acta 54.5(2009):1426-1435.