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
刊名	Chemical Journal of Chinese Universities-Chinese
	2006
卷号	27 期号:6 页码:1121-1125
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
ISSN号	0251-0790
中文摘要	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.
原文出处	://WOS:000238377500032
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34246]
专题	金属研究所_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.