Electrochemical corrosion behavior of nickel coating with high density nano-scale twins (NT) in solution with Cl(-)

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	Electrochemical corrosion behavior of nickel coating with high density nano-scale twins (NT) in solution with Cl(-)
	F. L. Sun; G. Z. Meng; T. Zhang; Y. W. Shao; F. H. Wang; C. F. Dong; X. G. Li
	2009
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	54 期号:5 页码:1578-1583
摘要	in this work, a nickel coating with high density nano-scale twins (NT) was synthesized on Q235 steel by using pulsed electrodeposition technique. The effects of NT structure on pitting corrosion resistance and semi-conducting properties of passive films formed on pure Ni in borate buffer solution with chloride ions were investigated by the potentiodynamic polarization measurements and capacitance measurements. The results indicated that the passive films formed on NT coatings showed higher pitting corrosion resistance and a bi-layer semi-conducting structure distribution, comparing with those formed on industrial electrodeposited (IE) nickel. The passive films are p-type semi-conductors at low potentials, but they show an n-type semi-conductor behavior at high potentials, It demonstrated that NT structure decreased vacancy diffusion velocity and slowed down the growth of passive films consequently. This led to the enhancement Of pitting resistance for NT nickel. (c) 2008 Elsevier Ltd. All rights reserved.
部门归属	[sun, feilong; meng, guozhe; zhang, tao; shao, yawei; wang, fuhui] harbin engn univ, key lab superlight mat & surface technol, corros & protect lab, minist educ, harbin 150001, peoples r china. [meng, guozhe; zhang, tao; shao, yawei; wang, fuhui; li, xiaogang] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [dong, chaofang; li, xiaogang] univ sci & technol beijing, ctr corros & protect, beijing 100083, peoples r china.;meng, gz (reprint author), harbin engn univ, key lab superlight mat & surface technol, corros & protect lab, minist educ, nantong st 145, harbin 150001, peoples r china;mengguozhe@hrbeu.edu.cn
关键词	Nano-scale Twins Pitting Corrosion Passive Films Mott-schottky (M-s) Relationship Vacancy Diffusion Coefficient Films
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32299
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. L. Sun,G. Z. Meng,T. Zhang,et al. Electrochemical corrosion behavior of nickel coating with high density nano-scale twins (NT) in solution with Cl(-)[J]. Electrochimica Acta,2009,54(5):1578-1583.
APA	F. L. Sun.,G. Z. Meng.,T. Zhang.,Y. W. Shao.,F. H. Wang.,...&X. G. Li.(2009).Electrochemical corrosion behavior of nickel coating with high density nano-scale twins (NT) in solution with Cl(-).Electrochimica Acta,54(5),1578-1583.
MLA	F. L. Sun,et al."Electrochemical corrosion behavior of nickel coating with high density nano-scale twins (NT) in solution with Cl(-)".Electrochimica Acta 54.5(2009):1578-1583.