Inhibition of Aluminium Alloy Corrosion by Compositions Based on Sodium alginate and Zinc Salts in Chloride-Containing Medium

Keywords

аluminum alloy, corrosion, chloride-containing medium, inhibitory composition, sodium alginate, zinc sulfate, zinc nitrate, zinc acetate, anti-corrosion efficiency, adsorption

Abstract

The inhibitory effect of compositions based on sodium alginate and zinc salts on the corrosion of an aluminum alloy in a chloride-containing environment was studied. It was found that the effectiveness of protection largely depends on the nature of the anion in the zinc salt composition. The highest corrosion resistance (96%) was demonstrated by the composition with zinc acetate, which is due to the formation of a dense film with improved protective properties.

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