Proceedings of the Korean Institute of Surface Engineering Conference (한국표면공학회:학술대회논문집)
- 2012.11a
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- Pages.16-16
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- 2012
Formation of Anodic Films on Pure Mg and Mg alloys for Corrosion Protection
- Moon, Sungmo (Materials Processing Division, Korea Institute of Materials Science) ;
- Nam, Yunkyung (Materials Processing Division, Korea Institute of Materials Science)
- Published : 2012.11.08
Abstract
Mg and its alloys have been of great interest because of their low density of 1.7, 30% lighter than Al, but their wide applications have been limited because of their poor resistances against corrosion and/or abrasion. Corrosion resistance of Mg alloys can be improved by formation of anodic films using anodic oxidation method in aqueous electrolytes. Plasma electrolytic oxidation (PEO) is one of anodic oxidation methods by which hard anodic films can be formed as a result of micro-arc generation under high electric field. PEO method utilize not only substrate elements but also chemical components in electrolytes to form anodic films on Mg alloys. PEO films formed on AM50 magnesium alloy in an acidic fluozirconate electrolyte were observed to consist of mainly
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