Development of Ti-12Mo-8Nb Alloy for Biomedical Application

Several beta titanium alloys were developed for biomedical applications due to the combination of low elasticity modulus, high strength, fatigue resistance and good ductility with excellent corrosion resistance. In this regard, a new metastable beta titanium Ti-12Mo-8Nb alloy was developed, as an al...

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Published inMaterials science forum Vol. 899; pp. 191 - 194
Main Authors da Silva Kassya, Jessica Peixoto, dos Santos, Leizy Pâmela Oliveira, Jacinto, Caroline Miranda, Dille, Jean, Araújo, Leonardo Sales, Borborema, Sinara Gabriel, Nunes, Carlos Angelo, de Almeida, Luiz Henrique, Baldan, Renato
Format Journal Article
LanguageEnglish
Published Pfaffikon Trans Tech Publications Ltd 03.07.2017
Subjects
Alloy development
Aluminum
Beta phase
Biocompatibility
Biomedical materials
Corrosion fatigue
Corrosion resistant alloys
Diamond pyramid hardness
Ductility
Fatigue strength
Hardness
Heat treatment
High strength
High vacuum
Mechanical properties
Microhardness
Microstructure
Modulus of elasticity
Niobium
Surgical implants
Titanium alloys
Titanium base alloys
X-ray diffraction
Ti-Mo-Nb Alloys
Biomaterial
Microstructure
Properties
Titanium Alloy
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Summary:Several beta titanium alloys were developed for biomedical applications due to the combination of low elasticity modulus, high strength, fatigue resistance and good ductility with excellent corrosion resistance. In this regard, a new metastable beta titanium Ti-12Mo-8Nb alloy was developed, as an alternative for the traditional Ti-6Al-4V alloy, with the substitution of vanadium and aluminum for molybdenum and niobium. The objective of this work was to present the microstructural characterization and mechanical properties of the Ti-12Mo-8Nb alloy, heat treated for 1h at 950oC under high vacuum and then water quenched. The microstructure of the alloy was characterized by X-ray diffraction and optical microscopy. Vickers microhardness and nanoindentation were performed for determination of hardness, Young’s modulus and the ratio of hardness to Young’s modulus. The Ti-12Mo-8Nb microstructure consisted of β phase and the values obtained for the ratio of hardness to Young’s modulus were higher than the Ti-6Al-4V alloy.
Bibliography:Selected, peer reviewed papers from the Tenth International Latin American Conference on Powder Technology (PTECH 2015), November 8-11, 2015, Rio de Janeiro, Brazil
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.899.191