Abstract
The anodic and cathodic polarization behavior of titanium and four commercial alloys (Ti‐5Al‐2.5Sn; Ti‐6Al‐4V; Ti‐8Al‐1Mo‐1V; Ti‐13V‐11Cr‐3Al) has been investigated in boiling acidic chloride solutions (; ; ) and in solution as a function of tensile stress (equal to ). All materials exhibit an active to passive transition. Pitting corrosion was observed at very noble potentials for the Ti‐5Al‐2.5Sn; Ti‐6Al‐4V, and Ti‐8Al‐1Mo‐1V alloys, and a transpassive behavior was observed for the Ti‐13V‐11Cr‐3Al alloy. The kinetics of the hydrogen evolution reaction (HER) is substantially facilitated by increasing the chloride concentration and by going from the most dilute chloride solutions to dilute sulfuric acid solutions. The tensile stress does not modify in our experimental conditions (of aggressive medium, temperature, surface state, and stress type and level, etc.) the electrochemical behavior of all materials examined.
Published Version
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