Journal
APPLIED SURFACE SCIENCE
Volume 254, Issue 9, Pages 2755-2762Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2007.10.015
Keywords
aluminium alloys; passivating oxide film; porous anodic layer; XPS
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The paper studies some aspects of the behaviour of four aluminium alloys under chemical etching by sodium hydroxide solution and during their subsequent anodizing in sulphuric acid solution. A correspondence is seen between etching rate, thickness of the passivating oxide film and porosity of the anodic layer. The possibility of an influence on these properties of precipitates and micro-heterogeneities in the metallic surface is suggested. (c) 2007 Elsevier B.V. All rights reserved.
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