P15-30 Nanoporous TiO2 thin layer formed by electrochemical methods to improve the surface properties of titanium alloy in bio-simulated solutions

 Nanoporous TiO2 thin layer formed by electrochemical methods to improve the surface properties of titanium alloy in bio-simulated solutions

Lidia Benea, Eliza Danaila, Iulian Bounegru

Dunarea de Jos University of Galati / Competences Center Interfaces - Tribocorrosion and Electrochemical Systems (cCC-ITES)

Titanium alloys are widely recognized as the most appropriate materials for biomedical applications, due to their well-established corrosion resistance and biocompatibility. Among titanium alloys, Ti–6Al–4V alloy has gained wide popularity as a general-purpose alloy and more recently for biomedical applications. However, Ti–6Al–4V alloy is known for its notoriously poor tribological properties. This consideration may limit its applicability particularly in areas involving wear and friction. Several surface engineering methods have been explored to enhance the corrosion-wear resistance of the titanium alloys while maintaining their corrosion resistance and biocompatibility. Among these methods, the production of titania coatings by anodic oxidation treatment offers some promising features. In this work, Ti-6Al-4V alloy was electrochemically treated to form a nanoporous thin titanium oxide layer. The surface properties as corrosion resistance and biocompatibility in physiological solution of untreated Ti-6Al-4V alloy and nanoporous thin oxide film formed were evaluated

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