| Full text | |
| Author(s): |
Romero-Resendiz, L.
;
Rossi, M. C.
;
Segui-Esquembre, C.
;
Amigo-Borras, V.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | Journal of Materials Science; v. N/A, p. 17-pg., 2023-10-28. |
| Abstract | |
A new Ti-Mo-In alloy was designed for biomedical implant applications and produced by powder metallurgy. Mechanical properties, ion release, and electrochemical assessments were conducted to uncover its biomaterial feasibility. The Ti-15Mo-5In alloy consisted of a nearly equiaxed and micrometric beta matrix with acicular alpha and fine dispersed alpha '' phases. Mo and In chosen contents encouraged flexural strength (0.59 GPa) and hardness (3.9 GPa) beyond the values for human bone in the literature. As expected from the predominantly beta microstructure, a medium value of elastic modulus (80 GPa) was obtained. The ion Ti (0.019 mu gL(-1) cm(-2) h(-1)), Mo (0.622 mu gL(-1) cm(-2) h(-1)), and In (0.001 mu gL(-1) cm(-2) h(-1)) released concentrations were below harmful concentrations to human health. Corrosion rates during immersion and electrochemical tests (0.524 and 0.1 mu m year(-1), respectively) were lower than those reported for various implant materials. The Ti-15Mo-5In alloy is a feasible option for orthopedic and dental implants. (AU) | |
| FAPESP's process: | 21/03865-9 - Influence of surface modifications on bioactivity and (tribo) corrosion of beta Ti-Nb-(Zr) alloys with low elastic modulus for application as implant |
| Grantee: | Mariana Correa Rossi |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/18293-8 - Titanium alloys: phase transformations and additive manufacturing applied to obtaining functionally graded materials |
| Grantee: | Rubens Caram Junior |
| Support Opportunities: | Research Projects - Thematic Grants |