The Corrosion Behaviour of Aluminum Alloy 2024 - T3 in Acidic Environments

  • Vasile HOTEA North University of Baia Mare, Romania
  • Jozsef JUHASZ North University of Baia Mare, Romania
  • Elena POP North University of Baia Mare, Romania
  • Gheorghe IEPURE North University of Baia Mare, Romania
  • Aurica POP North University of Baia Mare, Romania
Keywords: corrosion, aluminum alloy, corrosion rate, penetration index, pitting, sulfuric acid

Abstract

This research aimed at analysing the acidic corrosion behavior of aluminum alloy 2024-T3 commonly used in the aerospace. We study the variation of corrosion rate with immersion time at different values of H2SO4 concentration and corrosion rate variation depending on the concentration of the solution setting the group of corrosion of the alloy. Aluminum forms initially a few-nm-thick layer of aluminum oxide, γ-Al, which after prolonged exposure in humidified air is covered by aluminum  oxyhydroxide, γ-AlOOH, and subsequently by various hydrated aluminum oxides and aluminum hydroxides. The exposed metal surfaces involved aspects of the corrosion process in 0.1M H2SO4, 0.01M H2SO4 and 0.001M H2SO4 solutions, to determine the type of corrosion and propagation mechanism in acidic environments.

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References

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Fascicle_9_2_2012
Published
2012-06-15
How to Cite
1.
HOTEA V, JUHASZ J, POP E, IEPURE G, POP A. The Corrosion Behaviour of Aluminum Alloy 2024 - T3 in Acidic Environments. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Jun.2012 [cited 2May2024];35(2):72-7. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/2896
Issue
Vol 35 No 2 (2012)
Section
Articles

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