Dealloying behaviour of Cu-20Zr alloy in hydrochloric acid solution

IMR OpenIR

	Dealloying behaviour of Cu-20Zr alloy in hydrochloric acid solution
	H. B. Lu; Y. Li; F. H. Wang
	2006
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	48 期号:8 页码:2106-2119
摘要	The dealloying of the duplex-phase Cu-20Zr cast alloys and corresponding sputtered Cu-20Zr films (wt.%) in hydrochloric acid solution was investigated using electrochemical, chemical and surface analysis techniques. Results show that the dissolution mechanisms for the cast alloy and the films were strongly depended on the electrochemical activities of Zr and Cu in each phase in 0.1 mol/l HCl solution. When the potential was between the redox potentials of Cu/Cl-/CuCls and Zr/Zr4+, the dissolution is attributed to the selective removal of Zr atoms in the cast alloy and the sputtered films; when the potential was higher than the redox potential of Cu/Cl-/CuCls, Cu and Zr atoms in the samples dissolved simultaneously. In duplex-phase cast alloy, of Zr in the different phases in the alloy, Zr in the zirconium-rich phase was in preference to dissolve owing to its high electrochemical activities. Namely the selective phase attach firstly happens in the cast alloy. The study of the corrosion characteristic of sputtered films showed that Cu atoms reacted with Clions in the solution and formed the corrosion product of Cu(I) and Cu(II) complex ions, which restrained the dissolution of Cu atoms. (c) 2005 Elsevier Ltd. All rights reserved.
部门归属	cas, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;li, y (reprint author), cas, inst met res, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;haibolv@hotmail.com liying@imr.ac.cn
关键词	Sputtered Films Alloy Acid Solution Dealloying X-ray-diffraction Corrosion Behavior Chloride Media Anodic-dissolution Sodium-chloride Copper Cu Kinetics Nickel Electrodissolution
URL	查看原文
WOS记录号	WOS:000240055200016
引用统计	被引频次：43[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/321006/34380
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. B. Lu,Y. Li,F. H. Wang. Dealloying behaviour of Cu-20Zr alloy in hydrochloric acid solution[J]. Corrosion Science,2006,48(8):2106-2119.
APA	H. B. Lu,Y. Li,&F. H. Wang.(2006).Dealloying behaviour of Cu-20Zr alloy in hydrochloric acid solution.Corrosion Science,48(8),2106-2119.
MLA	H. B. Lu,et al."Dealloying behaviour of Cu-20Zr alloy in hydrochloric acid solution".Corrosion Science 48.8(2006):2106-2119.