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Ti-Mo alloys employed as biomaterials: effects of composition and aging heat treatment on microstructure and mechanical behavior

Cardoso, Flavia F ; Ferrandini, Peterson L ; Lopes, Eder S N ; Cremasco, Alessandra ; Caram, Rubens

Journal of the mechanical behavior of biomedical materials, 2014-04, Vol.32, p.31-38 [Periódico revisado por pares]

Netherlands

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Título:
Ti-Mo alloys employed as biomaterials: effects of composition and aging heat treatment on microstructure and mechanical behavior
Autor: Cardoso, Flavia F ; Ferrandini, Peterson L ; Lopes, Eder S N ; Cremasco, Alessandra ; Caram, Rubens
Assuntos: Alloys ; Alloys - chemistry ; Biocompatibility ; Biocompatible Materials - chemistry ; Biomedical materials ; Heat treatment ; Hot Temperature ; Materials Testing ; Mechanical Phenomena ; Mechanical properties ; Microstructure ; Molybdenum - chemistry ; Surgical implants ; Time Factors ; Titanium - chemistry ; Titanium base alloys ; Water - chemistry
É parte de: Journal of the mechanical behavior of biomedical materials, 2014-04, Vol.32, p.31-38
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
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Descrição: The correlation between the composition, aging heat treatments, microstructural features and mechanical properties of β Ti alloys is of primary significance because it is the foundation for developing and improving new Ti alloys for orthopedic biomaterials. However, in the case of Ti-Mo alloys, this correlation is not fully described in the literature. Therefore, the purpose of this study was to experimentally investigate the effect of composition and aging heat treatments on the microstructure, Vickers hardness and elastic modulus of Ti-Mo alloys. These alloys were solution heat-treated and water-quenched, after which their response to aging heat treatments was investigated. Their microstructure, Vickers hardness and elastic modulus were evaluated, and the results allow us to conclude that stabilization of the β phase is achieved with nearly 10% Mo when a very high cooling rate is applied. Young's modulus was found to be more sensitive to phase variations than hardness. In all of the compositions, the highest hardness values were achieved by aging at 723K, which was attributed to the precipitation of α and ω phases. All of the compositions aged at 573K, 623K and 723K showed overaging within 80h.
Editor: Netherlands
Idioma: Inglês

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Ti-Mo alloys employed as biomaterials: effects of composition and aging heat treatment on microstructure and mechanical behavior

Cardoso, Flavia F ; Ferrandini, Peterson L ; Lopes, Eder S N ; Cremasco, Alessandra ; Caram, Rubens

Netherlands

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