Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Assessment of the Corrosion Behavior of a Sintered Al-Cu-Mg Alloy in Aeronautical Environments as a Function of the Heat Treatment

  • Sanchez-Majado, S. (Materials Science and Metallurgical Engineering Department. Universidad Carlos III de Madrid. Avda. de la Universidad) ;
  • Torralba, J. M. (Materials Science and Metallurgical Engineering Department. Universidad Carlos III de Madrid. Avda. de la Universidad) ;
  • Jimenez-Morales, A. (Materials Science and Metallurgical Engineering Department. Universidad Carlos III de Madrid. Avda. de la Universidad)
  • Published : 2006.09.24
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Abstract

The corrosion performance of a powder metallurgical aluminum alloy in aeronautical environments was studied for both as sintered and heat treated states. Sintered samples were obtained by uniaxial pressing of an Al-Cu-Mg prealloyed powder followed by liquid phase sintering. The heat treatments applied were T4 and T6. Corrosion behaviour was assessed by means of potentiodynamic polarization. Results for the equivalent commercial wrought counterpart, AA2024-T3, are also presented for comparison. Similar corrosion performance was observed for both as sintered and AA2024-T3 samples, while corrosion resistance of the PM materials was improved by the heat treatment, especially in the T4 state.

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