Abstract
Pitting attack behavior has been investigated on aluminum-magnesium alloy 5052, which is galvanically coupled with pure titanium in deaerated 0.1M AlCl3 solution at room temperature. It is shown that relation between pitting attack factor for aluminum (fAlpit), which is calculated from experimental data and area ratio of 5052 aluminum alloy to titanium, is revealed by electrochemical measurements. It is found that a tendency of pitting attack increases with decrease of the anode to cathode area ratio.