Abstract
Citric acid is an environmentally friendly and non-toxic chemical which forms barrier-like oxide films on AA 7075 during anodization. The passive behavior and the kinetic of the film formation is investigated in macro- and microelectrochemical experiments. Galvanostatic formed anodic oxide films are investigated by FT-IRRAS and SEM. The oxide films formed are dense and free of pores and mainly consist of Al2O3. The formation of insoluble aluminum citrates is excluded at the chosen pH, but a small fraction of citrate in the oxide film is evident and explained by Zn and Cu complexes, respectively, incorporated in the aluminum oxide layer.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
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 call
