Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Influences of Anodizing and Thermal Oxidation on the Galvanic Corrosion between Aluminium and Titanium and GECM

GECM과 Al 및 Ti 간의 갈바닉 부식에 미치는 양극산화 및 열산화의 영향

  • Kim, Young-Sik (The Center of Green Materials Technology, School of Advanced Materials Engineering, Andong National University) ;
  • Lim, Hyun-Kwon (The Center of Green Materials Technology, School of Advanced Materials Engineering, Andong National University) ;
  • Sohn, Young-Il (Agency For Defense Development, The 1st R&D Institute-6) ;
  • Yoo, Young-Ran (Electronics and Telecommunications Research Institute) ;
  • Chang, Hyun-Young (Korea Power Engineering Company)
  • 김영식 (국립안동대학교 신소재공학부 청정소재기술연구센터) ;
  • 임현권 (국립안동대학교 신소재공학부 청정소재기술연구센터) ;
  • 손영일 (국방과학연구소) ;
  • 유영란 (한국전자통신연구소) ;
  • 장현영 (한국전력기술주식회사)
  • Received : 2010.02.04
  • Published : 2010.06.22
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Abstract

Graphite epoxy composite material (GECM) shows high specific strength and its application in the aerospace industry is gradually increasing. However, its application would induce galvanic corrosion between GECM and metallic materials. This work focused on the effects of anodizing and thermal oxidation on galvanic corrosion in a 3.5% NaCl solution between GECM and aluminium and titanium. In the case of anodized aluminium, galvanic corrosion resistance to the GECM was greatly improved by the anodizing treatment regardless of area ratio. In the case of anodized titanium, the anodizing by a formation voltage of 50V increased corrosion resistance of titanium in galvanic tests. Thermal oxidation of titanium also improved corrosion resistance of Ti to GECM.

Keywords

References

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