In-situ laser directed energy deposition of biomedical ti-nb and ti-zr-nb alloys from elemental powders
| Autor: | Francisco Javier Gil, Juan María Pou Saracho, Miquel Punset, Óscar Barro Guizán, Mónica Fernández Arias, Alejandra Rodríguez Contreras, Fernando Lusquiños Rodríguez, Felipe Arias Gonzalez, José María Manero |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits, Universitat Internacional de Catalunya, Institut de Recerca Sant Joan de Déu, Universidade de Vigo |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Aleaciones de titanio
Corrosion resistance Young's modulus Deposició d'energia dirigida per làser 02 engineering and technology Microestructura 01 natural sciences law.invention law Resistencia a la corrosió Deposition (phase transition) General Materials Science 22 Física Young’s modulus Composite material Titani -- Aliatges Microstructure 010302 applied physics Metals and Alloys Implants Artificial 021001 nanoscience & nanotechnology Laser Directed Energy Deposition (LDED) symbols 0210 nano-technology Citocompatibilidad Titanium Materials science 2211.01 Aleaciones chemistry.chemical_element 616.3 Enginyeria dels materials [Àrees temàtiques de la UPC] Corrosion symbols.namesake 0103 physical sciences Titanium alloys Citocompatibilitat Elastic modulus 3312.09 Resistencia de Materiales Mining engineering. Metallurgy Implants artificials 3312.08 Propiedades de Los Materiales TN1-997 Titanium alloy Laser Cytocompatibility Aliatges de titani Deposición de energía dirigida por láser chemistry Resistencia a la corrosión Laser directed energy deposition laser directed energy deposition (LDED) |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Investigo. Repositorio Institucional de la Universidade de Vigo Universidade de Vigo (UVigo) Metals Volume 11 Issue 8 METALS r-FSJD. Repositorio Institucional de Producción Científica de la Fundació Sant Joan de Déu instname Metals, Vol 11, Iss 1205, p 1205 (2021) |
| ISSN: | 2075-4701 |
| DOI: | 10.3390/met11081205 |
| Popis: | In order to achieve the required properties of titanium implants, more resources and research are needed to turn into reality the dream of developing the perfect implant material. The objective of this study was to evaluate the viability of the Laser Directed Energy Deposition to produce biomedical Ti-Nb and Ti-Zr-Nb alloys from elemental powders (Ti, Nb and Zr). The Laser Directed Energy Deposition is an additive manufacturing process used to build a component by delivering energy and material simultaneously. The material is supplied in the form of particles or wire and a laser beam is employed to melt material that is selectively deposited on a specified surface, where it solidifies. Samples with different compositions are characterized to analyze their morphology, microstructure, constituent phases, mechanical properties, corrosion resistance and cytocompatibility. Laser-deposited Ti-Nb and Ti-Zr-Nb alloys show no relevant defects, such as pores or cracks. Titanium alloys with lower elastic modulus and a significantly higher hardness than Ti grade 2 were generated, therefore a better wear resistance could be expected from them. Moreover, their corrosion resistance is excellent due to the formation of a stable passive protective oxide film on the surface of the material in addition, they also possess outstanding cytocompatibility. |
| Databáze: | OpenAIRE |
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