抄録
Anodic Oxidation of duralumin type Al-Cu-alloys such as 11S, 17S and 24S is regarded to be generally difficult. It is because of the corrosion that sometimes occurs just after the electrolytic treatment of them due to the effect of their copper content. In this study various experimens on 11S have been couducted by changing the conditions of electrolytic treatment, such as of voltage, current density, components of bath, temperature, and time, respectively. As a result, it has been revealed that anodic oxidation could be carried out without any trouble under proper experimental conditions.
