Proceedings of the Korean Institute of Surface Engineering Conference (한국표면공학회:학술대회논문집)

The Korean Institute of Surface Engineering (한국표면공학회)
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Plasma Electrolytic Oxidation Treatment of Magnesium Alloys

마그네슘 합금의 플라즈마전해산화 처리 기술

  • 문성모 (재료연구소 표면기술연구본부) ;
  • 김예진 (과학기술연합대학원대학교 신소재공학과)
  • Published : 2016.11.17
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Abstract

Mg alloys have been developed for automobile and mobile equipments because of their low density of $1.7g/cm^3$. One of the main problems of Mg alloys is their poor corrosion resistance which has limited their wide applications. Plasma electrolytic oxidation (PEO) method is one of the promising surface treatment methods for Mg alloys. In this presentation, experimental data about the effects of solution composition and form of current are presented and discussed in view of dielectric breakdown and reformation of PEO films The role of various anions of phosphate, silicate, fluoride, carbonate and hydroxide ions is discussed in view of film breakdown and reformation of PEO films.

Keywords