한국표면공학회:학술대회논문집 (Proceedings of the Korean Institute of Surface Engineering Conference)
- 한국표면공학회 2017년도 춘계학술대회 논문집
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- Pages.149-149
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- 2017
Surface Treatment Effect on Electrochemical characteristics of Al Alloy for ship
- 발행 : 2017.05.25
초록
Aluminum alloys have poor corrosion resistance compared to the pure aluminum due to the additive elements. Thus, anodizing technology artificially generating thick oxide films are widely applied nowadays in order to improve corrosion resistance. Anodizing is one of the surface modification techniques, which is commercially applicable to a large surface at a low price. However, most studies up to now have focused on its commercialization with hardly any research on the assessment and improvement of the physical characteristics of the anodized films. Therefore, this study aims to select the optimum temperature of sulfuric electrolyte to perform excellent corrosion resistance in the harsh marine environment through electrochemical experiment in the seawater upon generating porous films by variating the temperatures of sulfuric electrolyte. To fabricate uniform porous film of 5083 aluminum alloy, we conducted electro-polishing under the 25 V at
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