Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
권호 표지
DOI QR코드

DOI QR Code

Formation of Anodic Oxide Films on As-Cast and Machined Surfaces of Al-Si-Cu Casting Alloy

주조용 Al-Si-Cu 알루미늄 합금의 기계가공 및 주조된 표면에서의 양극산화피막 형성

  • 문성모 (한국기계연구원부설 재료연구소) ;
  • 남윤경 (한국기계연구원부설 재료연구소) ;
  • 양철남 (한국기계연구원부설 재료연구소) ;
  • 정용수 (한국기계연구원부설 재료연구소)
  • Published : 2009.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

The anodic oxidation behaviour of a cast component of AC2A Al alloy with machined surface and ascast surface was investigated in sulfuric acid solution. The anodized specimen showed relatively uniform and thick anodic oxide films on the as-cast surface, while non-uniform and very thin oxide films were formed on the machined surface. Non-anodized as-cast surface was observed to be covered with thick oxide scales and showed a number of second-phase particles containing Si, while non-anodized machined surface showed no oxide scales and relatively very small number of Si particles. Thus, the very limited growth of anodic oxide films on the as-cast surface was attributed to the presence of thick oxide scales and Si-containing second-phase particles on its surface.

Keywords

References

  1. S. Wernick, R. Pinner, P.G. Sheasby, The Surface Treatment and Finishing of Aluminium and its Alloys Vol. 1, 5th Ed., Finishing Publications Ltd, U.K. 1987
  2. K. Shimizu, G. M. Brown, H. Habazaki, K. Kobayashi, P. Skeldon, G. E. Thompson, G. C. Wood, Corros. Sci., 42 (2000) 831 https://doi.org/10.1016/S0010-938X(99)00108-0
  3. L. Iglesias-Rubianes, S. J. Garcia-Vergara, P. Skeldon, G. E. Thompson, J. Ferguson, M. Beneke, Electrochimica Acta, 52 (2007) 7148 https://doi.org/10.1016/j.electacta.2007.05.052
  4. S.-M. Moon, M. Sakairi, H. Takahashi, J. of Electrochemical Society, 151 (2004) B399 https://doi.org/10.1149/1.1752933
  5. C. Blanc, Y. Roques, G. Mankowski, Corros. Sci., 40 (1998) 1019 https://doi.org/10.1016/S0010-938X(98)00039-0
  6. A. Forn, J. A. Picas, M. T. Baile, E. Martin, V. G. Garcia, Surface & Coatings Technology, 202 (2007) 1139 https://doi.org/10.1016/j.surfcoat.2007.07.070
  7. L. E. Fratila-Apachitei, I. De Graeve, I. Apachitei, H. Terryn, J. Duszczyk, Surface & Coatings Technology, 200 (2006) 5343 https://doi.org/10.1016/j.surfcoat.2005.06.009
  8. L. E. Fratila-Apachitei, H. Terryn, P. Skeldon, G. E. Thompson, J. Duszczyk, L. Katgerman, Electrochimica Acta, 49 (2004) 1127 https://doi.org/10.1016/j.electacta.2003.10.024
  9. L. E. Fratila-Apachitei, F. D. Tichelaar, G. E. Thompson, H. Terryn, P. Skeldon, J. Duszczyk, L. Katgerman, Electrochimica Acta, 49 (2004) 3169 https://doi.org/10.1016/j.electacta.2004.02.030

Cited by

  1. Electrochemical Damage Characteristics of Anodized 5083 Aluminum Alloy with Flow Rate in Seawater vol.49, pp.4, 2016, https://doi.org/10.5695/JKISE.2016.49.4.349
  2. Formation Behavior of Anodic Oxide Films on Al7075 Alloy in Sulfuric Acid Solution vol.47, pp.4, 2014, https://doi.org/10.5695/JKISE.2014.47.4.155
  3. Effects of Metal Anion Complexes in Electrolyte on the Properties of Anodic Oxide Films on ADC12 Al Alloy vol.49, pp.2, 2016, https://doi.org/10.5695/JKISE.2016.49.2.130