| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10655640 | Intermetallics | 2005 | 7 Pages |
Abstract
The passive film behavior of CP Titanium, Ti-6Al-4V and Ti-based intermetallic Ti-13.4Al-29Nb was investigated as a function of immersion time in simulated body condition (Hank's solution), utilizing potentiodynamic polarization and electrochemical impedance spectroscopy techniques. All the alloys were spontaneously passivated on immersion in the electrolyte. Potentiodynamic polarization experiments conducted after 1 and 168Â h of immersion in Hank's solution indicated similar passive current densities. The susceptibility of Ti-13.4Al-29Nb alloy for passive film breakdown was ascribed to the greater Al content in the alloy. Electrochemical impedance spectroscopy studies indicated that the resistance of the passive film increased with duration of immersion for CP Titanium and Ti-13.4Al-29Nb. Therefore, the order of corrosion resistance under simulated human body conditions is Ti-Nb>Ti>Ti-V.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A.K. Shukla, R. Balasubramaniam, S. Bhargava,