Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T09:38:45.683Z Has data issue: false hasContentIssue false
  • English
  • Français

Comparative study of corrosion resistance for 6063 and 3003 aluminium alloys in chloride medium

Published online by Cambridge University Press:  20 January 2004

L. Bazzi ,
R. Salghi ,
Z. El Alami ,
E. Ait Addi ,
S. El Issami ,
S. Kertit  and
B. Hammouti
Get access

Abstract

The corrosion resistance of two aluminium alloys, 6063 and 3003, has been compared using a 0.5 M sodium chloride solution. The results obtained with electrochemical and metallographic techniques show that alloy 6063 is more resistant than alloy 3003 at 25°C. The corrosion rate tends to increase as the pH deviates from neutrality. When the chloride concentration is decreased, the resistance to pitting corrosion is improved for both alloys. The influence of the temperature of the medium on the behaviour of the two alloys has also been studied. In the case of alloy 3003, the corrosion rate (Icor) increases with temperature up to 55°C, but drops back to its room temperature value at 65°C. In the case of alloy 6063, Icor decreases as temperature is raised up to 65°C. At all testing temperatures, the 6063 alloy has a better corrosion resistance than the 3003 alloy.

Type
Research Article
Information
Metallurgical Research & Technology , Volume 100 , Issue 12: Science et Génie des MatériauxContraintes résiduelles , December 2003 , pp. 1227 - 1235
Copyright
© La Revue de Métallurgie, 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)