Preparation of DTMS films on LY12 aluminum alloys via electrochemical deposition and their anti-corrosive performance

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	Preparation of DTMS films on LY12 aluminum alloys via electrochemical deposition and their anti-corrosive performance
	J. M. Hu; L. Liu; J. Q. Zhang; C. N. Cao
	2006
发表期刊	Chemical Journal of Chinese Universities-Chinese
ISSN	0251-0790
卷号	27 期号:6 页码:1121-1125
摘要	Dodecyltrimethoxysilane(DTMS) films were prepared on LY12 aluminum alloys by electrochemical deposition. FTIR-RA tests showed that the DTMS films were successfully deposited through the chemical bonding between silane agent and Al alloys, i.e., by the formation of Si-O-Al bond. The corrosion inhibition of silane covered alloys was characterized by electrochemical impedance spectroscopy (EIS) measurements in NaCl solutions with a mass fraction of 3.5%. The results show that in comparison with those prepared at open-circuit potential(OCP), the DTMS films deposited at cathodic potentials displayed an enhancement in protectiveness. Furthermore, a "critical potential" were observed, at which the films prepared showed the highest barrier performance. Scanning electron microscopy (SEM) image indicated a potential dependence of surface morphology of silane films. The highest compactness was obtained at the "critical potential". The impedance models of DTMS covered Al alloys in corrosive solutions were also proposed in the present work.
部门归属	zhejiang univ, dept chem, hangzhou 310027, peoples r china. chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;hu, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china
关键词	Silane Treatment Electrochemical Deposition Dodecyltrimethoxysilane(Dtms) Ly12 Aluminum Alloy Corrosion Protection Sol-gel Films Impedance Spectroscopy Corrosion Protection Nacl Solution Silanes Electrodeposition 2024-t3 Ion Al
URL	查看原文
WOS记录号	WOS:000238377500032
引用统计	被引频次：8[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/321006/34246
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. M. Hu,L. Liu,J. Q. Zhang,et al. Preparation of DTMS films on LY12 aluminum alloys via electrochemical deposition and their anti-corrosive performance[J]. Chemical Journal of Chinese Universities-Chinese,2006,27(6):1121-1125.
APA	J. M. Hu,L. Liu,J. Q. Zhang,&C. N. Cao.(2006).Preparation of DTMS films on LY12 aluminum alloys via electrochemical deposition and their anti-corrosive performance.Chemical Journal of Chinese Universities-Chinese,27(6),1121-1125.
MLA	J. M. Hu,et al."Preparation of DTMS films on LY12 aluminum alloys via electrochemical deposition and their anti-corrosive performance".Chemical Journal of Chinese Universities-Chinese 27.6(2006):1121-1125.