Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Comparison of chemical resistance properties of anodized film according to anodized sealing treatment method of Al6061 alloy

Al6061 합금의 양극산화 봉공 처리 방법에 따른 양극산화 피막의 내화학 특성 비교

  • Young Uk Han (R&D center, YKMC Inc.) ;
  • Sang Sub Lee (R&D center, YKMC Inc.) ;
  • Jun Seok Lee (R&D center, YKMC Inc.) ;
  • Gibum Jang (YKMC Inc.) ;
  • Sung Youl Cho (R&D center, YKMC Inc.)
  • 한영욱 ((주)영광와이케이엠씨 연구개발센터) ;
  • 이상섭 ((주)영광와이케이엠씨 연구개발센터) ;
  • 이준석 ((주)영광와이케이엠씨 연구개발센터) ;
  • 장기범 ((주)영광와이케이엠씨) ;
  • 조성열 ((주)영광와이케이엠씨 연구개발센터)
  • Received : 2024.04.16
  • Accepted : 2024.05.16
  • Published : 2024.06.30
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Abstract

This study compared the chemical resistance properties according to various sealing treatment methods for the anode film formed during the anodization process of Al6061 alloy. Al6061 aluminum was used in four different sealing treatment methods: boiling water sealing, lithium sealing, nickel sealing, and pressurized sealing, and each sample was evaluated for corrosion resistance through a 5% HCl bubble test and the microstructure was observed through a scanning electron microscope(SEM). According to the results, corrosion resistance increased as time and temperature increased in all sealing treatment methods. Relatively, corrosion resistance was high in the order of boiling water sealing, lithium sealing, nickel sealing, and pressure sealing, and the best corrosion resistance was found in pressure sealing. These research results can be helpful in selecting a process necessary to improve the efficiency and performance of anodizing process in the industrial field using aluminum alloys.

Keywords

References

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