Abstract
In this paper oxygen evolution was investigated during the anodization of the 2024-T3 aluminium alloy in borate solution. It was observed that oxygen evolution starts at about 1.1 Vsce and this value of voltage does not depend on the thickness of the anodic coating or on the type of applied pretreatments. This oxidation reaction seems to take place at active sites related with the intermetallics of copper present at the specimen surface. Deterioration of the electrical characteristics of the anodic films formed at various constant voltages and increase of leakage current through these films during the anodic potentiodynamic polarization were observed. These phenomena appeared when a critical value of anodization voltage was exceeded. Their origin did not seem to affect the value of potential (1.1 Vsce) where the oxygen evolution started.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.