About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials and Implants
|
| Presentation Title |
Surface Functionalization Zr-Ta-Ti β-Alloys Containing Cu for Biomedical Applications |
| Author(s) |
Gabriel Eduardo Giácono Pereira Aguillera, Fernanda Freitas Quadros, Diego Rafael Nespeque Correa, Carlos Roberto Grandini |
| On-Site Speaker (Planned) |
Carlos Roberto Grandini |
| Abstract Scope |
The development of advanced β-type titanium-based alloys with enhanced mechanical performance and biofunctionality is essential for next-generation orthopedic and dental implants. This study investigates the influence of copper addition and subsequent micro-arc oxidation (MAO) treatment on the structural, microstructural, and surface characteristics of a Zr-25Ta-25Ti alloy. Copper promoted the formation of CuZr intermetallic compounds, leading to significant increases in hardness and elastic modulus through second-phase strengthening while preserving the β-phase matrix. Surface biofunctionalization was performed by MAO at different anodizing voltages using a calcium- and phosphorus-containing electrolyte. Increasing the applied voltage favored the formation of thicker oxide layers, higher pore density, and greater rutile (TiO₂) content, together with enhanced calcium phosphate deposition. Although copper oxides were not detected, the combined alloying and surface-modification strategies demonstrate considerable potential to tailor the mechanical properties, corrosion resistance, and biological performance of metallic biomaterials intended for long-term implant applications. (Financial Support: CNPq and FAPESP) |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Surface Modification and Coatings, Titanium |