[The electrochemical behavior of TiTa30 and TiNb30 alloys for implantology]. / Etude du comportement électrochimique des alliages TiTa30 et TiNb30 pour l'implantologie.

ABSTRACT

The electrochemical behavior in artificial saliva of TiNb30 and TiTa30 alloys were compared with that of commercial pure titanium. The anodic potential, the current density, the passivation potential and the galvanic corrosion vs. Au were determined. Both alloys have a similar behavior to that of pure titanium. Crevace corrosion, which is very weak in pure Ti, is completely inhibited by the addition of Nb or Ta.