The characteristic pitting potentials of Ti and Ti6AI4V were determined by measurement of potentiodynamic current-potential curves in solutions of 1N NaCl, 1N Nal, and 1N NaBr. Under the same conditions current-time curves were measured for various potentials after generation of a new metallic surface. By means of these curves, one can study the repassivation behavior of materials. The comparison between the potential of pit repassivation and the repassivation/nonrepassivation potential shows a relatively good correlation. The determination of the critical repassivation potentials enables us to predict the pitting corrosion behavior.

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