Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Improvement of Corrosion Resistance of Aluminum Alloy with Wettability Controlled Porous Oxide films

  • Sakairi, M. (Faculty of Engineering, Hokkaido University) ;
  • Goyal, V. (Faculty of Engineering, Hokkaido University)
  • Received : 2016.01.28
  • Accepted : 2016.08.02
  • Published : 2016.08.31
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Abstract

The combined process of porous type anodizing and desiccation treatment was applied to improve wettability of A1050 aluminum alloy. The water contact angles of anodized samples were increaseds considerably with desiccation treatment. However, there was no considerable effect of polishing and anodizing time on water contact angle. The corrosion behavior with the treatments was investigated electrochemically. The corrosion resistance of the samples in 3.5 mass% NaCl solutions increased with higher contact angle. Anodized and desiccated samples showed better corrosion resistance than un-desiccated samples around rest potential region.

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References

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