Laser-deposited beta type Ti-42Nb alloy with anisotropic mechanical properties for pioneering biomedical implants with a very low elastic modulus
Autor/a
Arias-González, Felipe
Rodríguez-Contreras, Alejandra
Barro, Oscar
Fernández Arias, Mónica
Lusquiños, Fernando
Pou, Juan
Fecha de publicación
2022ISSN
1996-1944
Resumen
Present commercial titanium alloy implants have an elastic modulus higher than 100 GPa, whereas that of the cortical bone is much smaller (17–28 GPa). This elastic modulus mismatch produces a stress shielding effect and the resorption of the bone surrounding the implant. In the present work, a <100> fiber texture is developed in β type Ti-42Nb (wt%) alloy ingots generated by laser-directed energy deposition (LDED) in order to achieve anisotropic mechanical properties. In addition, we demonstrate that laser-deposited β type Ti-42Nb alloy ingots with an intense <100> fiber texture exhibit a very low elastic modulus in the building direction (Ez < 50 GPa) and high yield (σ0.2z > 700 MPa) and tensile (UTSz > 700 MPa) strengths. Laser-deposited Ti-42Nb alloy enhances the osteoinductive effect, promoting the adhesion, proliferation, and spreading of human osteoblast-like cells. Hence, we propose that laser-deposited β type Ti-42Nb alloy is a potentially promising candidate for the manufacturing of pioneering biomedical implants with a very low elastic modulus that can suppress stress shielding.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
616.3 - Patología del aparato digestivo. Odontología
Palabras clave
Microestructura
Textura cristal·logràfica
Mòdul de Young
Deposició d'energia dirigida per làser
Aliatges de titani
Citocompatibilitat
Microestructura
Textura cristalográfica
Módulo de Young
Deposición de energía dirigida por láser
Aleaciones de titanio
Citocompatibilidad
Microstructure
Crystallographic texture
Young’s modulus
Laser-directed energy deposition
Titanium alloys
Cytocompatibility
Páginas
17
Publicado por
MDPI
Colección
15; 20
Publicado en
Materials
Citación
Arias-González, Felipe; Rodríguez-Contreras, Alejandra; Punset fuste, Miquel [et al.]. Laser-deposited beta type Ti-42Nb alloy with anisotropic mechanical properties for pioneering biomedical implants with a very low elastic modulus. Materials, 2022, 15(20), 7172. Disponible en: <https://www.mdpi.com/1996-1944/15/20/7172>. Fecha de acceso: 7 nov. 2022. DOI: 10.3390/ma15207172
Enlace al documento relacionado
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- Odontologia [245]
Derechos
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