Characterization of Anodized Ti-Based Alloys: Wettability, Corrosion Resistance, and Biomechanical Performance

This study explores electrochemical and biomechanical properties of five Titanium based alloys, namely pure Titanium, Ti6Al4V, and experimentally developed Ti-10Nb-10Zr-5Ta, Ti-20Nb-20Zr-4Ta, and Ti-29.3Nb-13.6Zr-1.9Fe alloys. The wettability, biocompatibility, and corrosion measurements were performed after electrochemical anodization of the surfaces. The experimental alloys exhibited lower initial ground surface contact angles compared to the commonly used Ti-6Al-4V alloy—anodization inaqueous and organic electrolytes produced nanoporous/nanotubular morphologies, significantly enhancingsurface wettability. The Ti-20Nb-20Zr-4Ta alloy anodized in an ethylene glycol-based electrolyte at 60 Vdemonstrated the best hydrophilic properties, with a contact angle of 52.76 ± 3.90◦, notably lower thanthe 86.06 ± 3.92◦ of the control Ti-6Al-4V alloy. Electrochemical measurements were carried out toevaluate the corrosion resistance of the metallic alloys in chloride-containing solutions. The results obtainedand presented here contribute to the development of Titanium based alloys for biomedical applications,enhancing the current scientific literature.