On the Pitting Corrosion Resistance of Titanium

Abstract

The anodic behaviour of the pure titanium in acid, neutral, and alkaline solutions was studied both in the presence and absence of halogen ions. The polarization curves showed that Cl^- ion does not discharge at the titanium anode, showing a very high discharge overvoltage on titanium, and so does not prevent the passivation of titanium. The effect of halogen ion on the passivation of anode metal and the pitting corrosion resistivity of titanium were discussed.