About this Abstract |
| Meeting |
TMS Specialty Congress 2026
|
| Symposium
|
4th World Congress on High Entropy Alloys (HEA 2026)
|
| Presentation Title |
Development and Characterization of a New Multicomponent Alloy Based on 30Ti-30Nb-5Fe-30Mn-5Al (at%) for Biomedical Applications |
| Author(s) |
Luccas Nunes Caetano da Silva, Jhuliene Elen Muro Torrento, Carlos Roberto Grandini, Diego Rafael Nespeque Correa |
| On-Site Speaker (Planned) |
Diego Rafael Nespeque Correa |
| Abstract Scope |
The current work aimed to develop and characterize a new non-equiatomic multicomponent 30Ti-30Nb-5Fe-30Mn-5Al (at.%) alloy intended for biomedical applications. The alloy was designed using CALPHAD and arc melted. As cast and homogenized samples were subjected to chemical, physical, structural, mechanical, biological, and tribological characterizations. The results confirmed a biphasic structure (BCC TiNb-rich and C14 Laves MnNb-rich), and homogenization effectively reduced chemical segregation. The alloy exhibited high microhardness and a high elastic modulus. The surface was hydrophilic and exhibited good repassivation capability after the tribocorrosion test. In vitro assays showed that the alloy was non-cytotoxic and significantly increased cell viability compared with the control. The results indicate that the alloy is a promising material. Still, its high elastic modulus may make it more suitable for applications requiring high stiffness, such as surgical instruments, rather than for bone implants. (Financial support: FAPESP #2024/03148-3 and #2024/01132-2 and CNPq #404020/2023–2 and #304400/2025-4) |
| Proceedings Inclusion? |
Undecided |