About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials and Implants
|
| Presentation Title |
A-3: Laser Surface Alloying of Ti-20Nb-6Ta with Cu and Ag: Microstructural Formation, Corrosion Behavior, and Antibacterial Performance |
| Author(s) |
S.M. Cardoso, M. Sangali, M. Valentim, G.V. Prandi, L.A.A. Neto, R. Caram, Alessandra Cremasco, Lais Pellizzer Gabriel, Eder Socrates Najar Lopes, Kaio Niitsu Campo |
| On-Site Speaker (Planned) |
Kaio Niitsu Campo |
| Abstract Scope |
The growing demand for infection-resistant implants is driving the development of bioactive metallic surfaces with antimicrobial functionality. In this study, Cu- and Ag-enriched layers were produced on an additively manufactured Ti–20Nb–6Ta alloy via laser surface alloying. The modified surfaces were examined by X-ray diffraction, electron microscopy, electrochemical testing, and antibacterial assays. Cu and Ag additions promoted retention of the β phase, although the high thermal input led to some localized α-phase formation. The treated samples exhibited good corrosion performance in a NaCl-based solution. Antibacterial tests showed reduced bacterial proliferation while maintaining cell viability for up to 3 days. Although no immediate bactericidal effect was detected, the surfaces displayed mild bacteriostatic activity, likely associated with the relatively low Cu and Ag contents required to minimize hot cracking. Overall, these results highlight the promise of this surface modification approach as a foundation for further optimization toward infection-resistant implant materials. |
| Proceedings Inclusion? |
Planned: |