THE EFFECT OF THE COPPER 2 – 8 % ON THE CORROSION OF Al – Cu CASTING ALLOYS

A. Akdogan, H. Akar

Abstract

Since aluminium’s relative density is only about one – third of that of steel or of a copper-base alloy, it is widely used in automotive, constructional engineering, electrical applications and mechanical equipment as in the forms of alloys containing small amounts of other elements. The main aim in the present work is to investigate the effect of copper addition at 2 % intervals starting from 2 % to 8 % on the corrosion resistance and hardness of Al – Cu alloys. It can be concluded from the results of the present work that the corrosion resistance of Al-Cu alloys was observed to show great variety depending on corrosion media. The copper addition was found to play a vital role in influencing the microstructure and improving the hardness of both heat treatable and 60 % rolled alloys.

Keywords

corrosion, casting, Al-Cu alloys

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IMEKO-WC-2000-EVL-P531.pdf

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