Abstract
Beta titanium alloys have been developed for biomedical applications due to their outstanding mechanical properties, including low elastic modulus, high strength, excellent fatigue resistance, good ductility, and exceptional corrosion resistance. To enhance safety, the metastable beta titanium alloys Ti-12Mo-13Nb and Ti-10Mo-20Nb have been introduced as alternatives to the traditional Ti-6Al-6V alloy. The Ti-6Al-6V alloy contains vanadium, which is biotoxic and can lead to cell death, and aluminum, which may contribute to neural cell degeneration and accelerate the progression of Alzheimer’s disease. The objective of this work is to explore and present the properties and microstructure of the Ti-12Mo-13Nb and Ti-10Mo-20Nb alloys. Microstructural characterization of these alloys was performed using techniques such as X-ray diffraction and optical microscopy. The mechanical characterization was realized by Vickers hardness and the Young’s modulus was obtained by the nanoidentation technique. Both alloys presented elastic modulus (~90 GPa) lower than the widely used Ti-6Al-4V alloy (135 GPa). The results of the microstructural characterization showed only the presence of the β-Ti phase in the alloys.
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