Abstract
Distinct chemically and mechanically induced features, evident in the grains of the AA5083-O aluminium alloy, and their effects on anodizing and corrosion have been studied. The grain distinct features are orientation dependent and are ridge-like. These features were found after anodizing in Barker's reagent and after micro-trimming with a diamond knife (during the ultramicrotomy process). The grain features were also found to have a relationship with the anodic films formed on the alloy. Distinct striations (associated with the formation of the ridge-like features found after anodizing) were observed on the surface of the alloy after the removal of the anodic layer (using a solution containing 20g Cr2O3+30ml HPO3 in 1l of deionised water at 60°C). Further etched regions, after the removal of the anodic layer, revealed subsurface micro-layers which appear to have significant influence on the corrosion, anodizing and mechanical (at micro-scale) behaviour of the alloy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
