Electrochemical behavior of chemical conversion coated aluminum asa6061in chromic acid

الملخص EN

The corrosion behavior of bare and chemical conversion coated (through anodizing) aluminum AS4 6061 in stagnant chromic acid solutions.

Solutions of 2, 6 & lO wt% Cro3, at 45°C have been investigated using polarization ion technique.

The anodizing experiments were conducted under fixed conditions of 35 minute exposure time and 30 volt supplied voltage.

The most important feature achieved was the great d(fference in behavior between the anodic polarization curves for bare and anodized aluminum in different concentrations of chromic acid solutions.