Study on the rare earth sealing procedure of the porous film of anodized 2024 aluminum alloy

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	Study on the rare earth sealing procedure of the porous film of anodized 2024 aluminum alloy
	X. W. Yu; C. W. Yan; C. A. Cao
	2003
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	19 期号:1 页码:51-53
摘要	The rare earth sealing procedure of the porous film of anodized aluminum alloy 2024 was studied with the field emission scanning electron microscope (SEM) and X-ray energy dispersive spectroscopy (EDS). The results show that RE solution can form cerium oxide/hydroxides precipitation in the pores of the anodized coating at the beginning of sealing. At the same time, the spherical deposits formed on the surface of the anodized coating created a barrier to the precipitation of RE solution in the pores. When the pore-structured anodizing film is covered all with the spherical deposits, RE conversion coating will form on the surface of the anodized coating. The reaction of the coating formation was investigated by employing cyclic voltammetry. The results indicate that accelerator H2O2 acts as the source Of O-2 by carrying chemical reaction in course of coating formation. In the mean time, it maybe carries. electrochemical reaction to generate alkaline condition to accelerate the coating formation. The porous structure of the film is beneficial to the precipitation of the cerium hydroxides film.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. chinese acad sci, lab solid state ion, beijing 100080, peoples r china.;yan, cw (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china
关键词	Rare Earth Sealing Anodized Aluminum Alloy Scanning Electron Microscope Cyclic Voltammetry Stainless Aluminum Corrosion Protection
URL	查看原文
WOS记录号	WOS:000180691100015
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/321006/36141
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. W. Yu,C. W. Yan,C. A. Cao. Study on the rare earth sealing procedure of the porous film of anodized 2024 aluminum alloy[J]. Journal of Materials Science & Technology,2003,19(1):51-53.
APA	X. W. Yu,C. W. Yan,&C. A. Cao.(2003).Study on the rare earth sealing procedure of the porous film of anodized 2024 aluminum alloy.Journal of Materials Science & Technology,19(1),51-53.
MLA	X. W. Yu,et al."Study on the rare earth sealing procedure of the porous film of anodized 2024 aluminum alloy".Journal of Materials Science & Technology 19.1(2003):51-53.