Electrochemical corrosion performance in 3.5% NaCl of the electrodeposited nanocrystalline Ni films with and without dispersions of Cr nanoparticles

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	Electrochemical corrosion performance in 3.5% NaCl of the electrodeposited nanocrystalline Ni films with and without dispersions of Cr nanoparticles
	X. Peng; Y. Zhang; J. Zhao; F. Wang
	2006
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	51 期号:23 页码:4922-4927
摘要	Nanocrystalline (nc) Ni films with and without dispersions of Cr nanoparticles were electrodeposited from a nickel sulfate bath. The grain size of the nc-Ni films was reduced with increasing in the co-deposition content of Cr nanoparticles. Potentiodynamic polarization tests showed that increasing in the co-deposition content resulted in an enlarged passive region of the nc-Ni in 3.5% NaCl through reducing the corrosion potential and increasing the breakdown potential. Scanning electron microscopy (SEM) observation indicated that the polarized pure nc-Ni film exhibited numerous large and deep pits. However, they became smaller and shallower when 4.5 wt.% Cr nanoparticles were co-deposited, and almost disappeared when 10.9 wt.% Cr were co-deposited. X-ray photoelectron spectroscopy (XPS) analysis showed that the different electrochemical corrosion performance was associated with the ability of the Cr nanoparticles co-deposited nc-Ni film to form a continuous Cr-oxide passive film. (c) 2006 Published by Elsevier Ltd.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;peng, x (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;xpeng@imr.ac.cn
关键词	Electrodeposition Electrochemical Corrosion Nanocrystalline Ni Film Cr Nanoparticles X-ray Photoelectron Spectroscopy Localized Corrosion Nanocomposite Film Pitting Corrosion Grain-size Behavior Nickel Alloys Oxidation Resistance Passivity
URL	查看原文
WOS记录号	WOS:000238558600018
引用统计	被引频次：68[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/321006/34426
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Peng,Y. Zhang,J. Zhao,et al. Electrochemical corrosion performance in 3.5% NaCl of the electrodeposited nanocrystalline Ni films with and without dispersions of Cr nanoparticles[J]. Electrochimica Acta,2006,51(23):4922-4927.
APA	X. Peng,Y. Zhang,J. Zhao,&F. Wang.(2006).Electrochemical corrosion performance in 3.5% NaCl of the electrodeposited nanocrystalline Ni films with and without dispersions of Cr nanoparticles.Electrochimica Acta,51(23),4922-4927.
MLA	X. Peng,et al."Electrochemical corrosion performance in 3.5% NaCl of the electrodeposited nanocrystalline Ni films with and without dispersions of Cr nanoparticles".Electrochimica Acta 51.23(2006):4922-4927.