High Pitting Corrosion Resistance of Pure Aluminum with Nanoscale Twins

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	High Pitting Corrosion Resistance of Pure Aluminum with Nanoscale Twins
	G. Z. Meng; L. Y. Wei; Y. W. Shao; T. Zhang; F. H. Wang; C. F. Dong; X. G. Li
	2009
发表期刊	Journal of the Electrochemical Society
ISSN	0013-4651
卷号	156 期号:8 页码:C240-C245
摘要	Pure aluminum coating with a nanoscale twin structure (NT Al) was successfully deposited by using a magnetron-sputter technique. The corrosion behavior of the NT Al was investigated and compared with that of cast Al in an aqueous acidic chloride solution by using potentiodynamic polarization and an electrochemical noise technique. The results indicated that for NT Al, both the cathodic and anodic reaction processes were greatly inhibited, the corrosion potential shifted to a more positive value, and the corrosion current density apparently decreased. The NT structure affected the pitting behavior of pure aluminum in two ways based on the stochastic analysis of the electrochemical noise data: (i) the formation rate of metastable pits was accelerated and (ii) the growth of the stable pit was impeded. This leads to the enhancement of the pitting resistance for NT Al coatings.
部门归属	[meng, guozhe; wei, liyan; shao, yawei; zhang, tao; wang, fuhui] harbin engn univ, minist educ, corros & protect lab, key lab superlight mat & surface technol, harbin 150001, peoples r china. [meng, guozhe; shao, yawei; zhang, tao; wang, fuhui; li, xiaogang] chinese acad sci, state key lab corros & protect, inst met res, 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, minist educ, corros & protect lab, key lab superlight mat & surface technol, harbin 150001, peoples r china;mengguozhe@hrbeu.edu.cn
关键词	Aluminium Corrosion Resistance Polarisation Sputtered Coatings Stochastic Processes Twinning Electrochemical Noise-analysis Intergranular Corrosion Localized Corrosion Neutral Chloride High-density Shot-noise Pit Growth Alloy Parameters Nickel
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WOS记录号	WOS:000267798500029
引用统计	被引频次：12[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/321006/32204
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Z. Meng,L. Y. Wei,Y. W. Shao,et al. High Pitting Corrosion Resistance of Pure Aluminum with Nanoscale Twins[J]. Journal of the Electrochemical Society,2009,156(8):C240-C245.
APA	G. Z. Meng.,L. Y. Wei.,Y. W. Shao.,T. Zhang.,F. H. Wang.,...&X. G. Li.(2009).High Pitting Corrosion Resistance of Pure Aluminum with Nanoscale Twins.Journal of the Electrochemical Society,156(8),C240-C245.
MLA	G. Z. Meng,et al."High Pitting Corrosion Resistance of Pure Aluminum with Nanoscale Twins".Journal of the Electrochemical Society 156.8(2009):C240-C245.