| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
In-Situ TiB and TiN Reinforced Ti-35Nb-7Zr-5Ta Composite Fabricated Through Spark Plasma Sintering (SPS): Microstructure, Mechanical Characteristics, and Biocompatibility |
| Author(s) |
Satyavan P. Digole, Sanoj Karki, Manoj Mugale, Amit Choudhari, Mayank Garg, Tushar Borkar |
| On-Site Speaker (Planned) |
Satyavan P. Digole |
| Abstract Scope |
This work focuses on the synergetic effect of the in-situ formation of TiBw and TiN within the Ti-35Nb-7Zr-5Ta (TNZT) matrix by adding hBN via high-energy ball milling followed by SPS for the application of orthopedic implants. SEM, EDS, and XRD analysis confirmed the formation of TiBw and TiN, which promote significant grain refinement. Compression test results for TNZT-xhBN (x=0, 0.25, 0.5, 1.0 %) show yield strength-ductility of 480MPa-50%, 872MPa-45%, 1050MPa-38% and 1150Mpa-18%, respectively. However, all the composite shows elastic modulus 23GPa nearly equal to pure TNZT, lower than commonly used Ti64 (115GPa) and thus akin to human bone (10-40GPa). Furthermore, Ti-0.5hBN shows improved tribological performance (CoF~0.6) than hBN-free TNZT (CoF~0.71). Biocompatibility studies showed excellent biocompatibilities for all composites. In conclusion, TNZT-0.5hBN depicts the best combination of strength, wear resistance, and biocompatibility, making it a suitable candidate for load-bearing implants. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Mechanical Properties, Biomaterials |