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Formation of Anodic Oxide Films on As-Cast and Machined Surfaces of Al-Si-Cu Casting Alloy
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 Title & Authors
Formation of Anodic Oxide Films on As-Cast and Machined Surfaces of Al-Si-Cu Casting Alloy
Moon, Sung-Mo; Nam, Yoon-Kyung; Yang, Cheol-Nam; Jeong, Yong-Soo;
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 Abstract
The anodic oxidation behaviour of a cast component of AC2A Al alloy with machined surface and ascast surface was investigated in sulfuric acid solution. The anodized specimen showed relatively uniform and thick anodic oxide films on the as-cast surface, while non-uniform and very thin oxide films were formed on the machined surface. Non-anodized as-cast surface was observed to be covered with thick oxide scales and showed a number of second-phase particles containing Si, while non-anodized machined surface showed no oxide scales and relatively very small number of Si particles. Thus, the very limited growth of anodic oxide films on the as-cast surface was attributed to the presence of thick oxide scales and Si-containing second-phase particles on its surface.
 Keywords
Anodic oxide film;Al casting alloy;Anodizing;cast surface;Machined surface;
 Language
Korean
 Cited by
1.
황산용액에서 Al7075 합금 표면의 양극산화피막 형성거동,문성모;양철남;나상조;

한국표면공학회지, 2014. vol.47. 4, pp.155-161 crossref(new window)
1.
Formation Behavior of Anodic Oxide Films on Al7075 Alloy in Sulfuric Acid Solution, Journal of the Korean institute of surface engineering, 2014, 47, 4, 155  crossref(new windwow)
2.
Effects of Metal Anion Complexes in Electrolyte on the Properties of Anodic Oxide Films on ADC12 Al Alloy, Journal of the Korean institute of surface engineering, 2016, 49, 2, 130  crossref(new windwow)
3.
Electrochemical Damage Characteristics of Anodized 5083 Aluminum Alloy with Flow Rate in Seawater, Journal of the Korean institute of surface engineering, 2016, 49, 4, 349  crossref(new windwow)
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