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Título del libro: Euro Pm2021 Congress Proceedings
Título del capítulo: Powder metallurgy fabrication and characterization of Ti6Al4V/xCu alloys for biomedical applications

Autores UNAM:
HECTOR JAVIER VERGARA HERNANDEZ;
Autores externos:

Idioma:

Año de publicación:
2021
Palabras clave:

Aluminum alloys; Biocompatibility; Copper; Energy dispersive spectroscopy; Medical applications; Particle size; Particle size analysis; Powder metallurgy; Powder metals; Sintering; Ternary alloys; Vanadium alloys; Anti-bacterial activity; Antibacterials; Biomedical applications; Bone implant; Cu powders; Fabrication and characterizations; matrix; Metals materials; Ti-6Al-4V alloy; Work study; Titanium alloys


Resumen:

Ti6Al4V alloy is the most used metal material for bone implants because of its good biocompatibility and adequate mechanical properties. Nevertheless, it shows low antibacterial activity, which may favor its failure. Addition of antibacterial elements, such as Copper, should avoid this drawback. This work studies the addition of Cu into a Ti6Al4V matrix resulting in Ti6Al4V/xCu composites. Ti6Al4V and Cu powders with 0-25 µm particle size have been blended with 0 to 20 wt.% of Cu, compacted in a die and then sintered at 1100°C. Shrinkage kinetics evaluated by dilatometry tests, SEM micrographs and energy-dispersive X-ray spectroscopy analysis allowed determining the effect of Cu amount on the sintering process and on microstructural changes arising during sintering. Mechanical properties of the sintered materials were obtained from microhardness. It was concluded that composite with 20 wt.% of Cu shows the best sintering behavior and mechanical properties. © European Powder Metallurgy Association (EPMA)


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