Publicação
Biocompatible TI alloys porous structures manufactured by laser powder bed fusion for orthopedic implants
| dc.contributor.advisor | Carmezim, Maria João Pedroso | |
| dc.contributor.advisor | Batalha, Rodolfo | |
| dc.contributor.author | Gomes, Rúben Alexandre Bastos | |
| dc.date.accessioned | 2026-07-27T10:01:23Z | |
| dc.date.available | 2026-07-27T10:01:23Z | |
| dc.date.issued | 2025-11 | |
| dc.description.abstract | Ligas biocompatíveis de Ti puro, Ti-6Al-4V ELI e Ti-39Nb foram produzidas por Fusão a Laser em cama de pó com geometrias maciças, gyroids e Voronoi, seguidas de caracterização microestrutural e mecânica. Os resultados mostraram que a liga Ti-39Nb tem maior ductilidade e um módulo de elasticidade mais próximo do osso cortical (E = 77 ± 2 GPa , σmáx = 754 ± 18 MPa, εmáx = 19 ± 3 %) apresentando elevado potencial para reduzir o efeito de blindagem de tensão em implantes ortopédicos, enquanto o Ti-6Al-4V revelou maior rigidez (E = 109 ± 1 GPa, σmáx = 1165 ± 53 MPa, εmáx = 10 ± 1 %) e resistência mecânica com menor comportamento dúctil. As geometrias gyroids demonstraram melhor desempenho do que as Voronoi, sugerindo maior potencial para aplicações biomédicas. | por |
| dc.description.abstract | Biocompatible alloys of pure Ti, Ti-6Al-4V ELI, and Ti-39Nb were produced by powder bed laser melting with solid, gyroid, and Voronoi geometries, followed by microstructural and mechanical characterization. The results showed that the Ti-39Nb alloy has greater ductility and a modulus of elasticity closer to that of cortical bone (E = 77 ± 2 GPa , σmax = 754 ± 18 MPa, εmax = 19 ± 3%), showing high potential for reducing the stress shielding effect in orthopedic implants, while Ti-6Al-4V revealed greater stiffness (E = 109 ± 1 GPa, σmax = 1165 ± 53 MPa, εmax = 10 ± 1 %) and mechanical resistance with less ductile behavior. Gyroid geometries demonstrated better performance than Voronoi ones, suggesting greater potential for biomedical applications. | eng |
| dc.identifier.tid | 204063566 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/63930 | |
| dc.language.iso | eng | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Manufatura Aditiva | |
| dc.subject | Fusão a Laser em Cama de Pó | |
| dc.subject | Ligas de Titânio | |
| dc.subject | Estruturas Porosas | |
| dc.subject | Implantes Ortopédicos | |
| dc.subject | Additive Manufacturing | |
| dc.subject | Laser Powder Bed Fusion | |
| dc.subject | Titanium alloys | |
| dc.subject | Porous Structures | |
| dc.subject | Orthopedic implants | |
| dc.title | Biocompatible TI alloys porous structures manufactured by laser powder bed fusion for orthopedic implants | eng |
| dc.type | master thesis | |
| dspace.entity.type | Publication | |
| thesis.degree.grantor | Instituto Politécnico de Setúbal | |
| thesis.degree.name | Master of Science Degree in Biomedical Engineering |