Article | REF: COR325 V2

Corrosion behaviour of aluminium alloys

Author: Emmanuel ROCCA

Publication date: March 10, 2023

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1. General: aluminum corrosion

1.1 Thermodynamics: E-pH diagram

Aluminum is one of the highly oxidizable metals with a very low standard electrode potential, E 0 (Al 3+ /Al) = –1.66 V/ENH . It can therefore be oxidized by the usual oxidizers such as oxygen gas O 2 or H + ions, but also directly by the water molecule H 2 O. The E = f(pH) diagram of aluminum in...

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General: aluminum corrosion