Influence of β-phase stability in elemental blended Ti-Mo and Ti-Mo-Zr alloys

Mohan, Prakash and Rajak, Dipen Kumar and Pruncu, Catalin I. and Behera, Ajit and Amigó-Borrás, Vicente and Elshalakany, Abou Bakr (2020) Influence of β-phase stability in elemental blended Ti-Mo and Ti-Mo-Zr alloys. Micron. ISSN 0968-4328 (In Press)

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This paper investigated the improvement of mechanical properties for one of the most used biomaterials, titanium-based alloy. To improve its mechanical properties, molybdenum was chosen to be added to Ti and Ti-Zr alloys through a mechanical blending process. After homogenization of Ti (12, 15) Mo and Ti (12, 15) Mo-6Zr, the compaction pressure and sintering temperature were varied to create pellets. Characterization has been done using scanning electron microscopy (SEM), X-ray diffraction (XRD), Vickers’s hardness, Archimedes test and ultrasonic method, and 3-point bending test. Micrograph of each pellet revealed the influence of Mo content that plays a prominent role in the variation of microstructure in the alloys Ti-Mo and Ti-Zr-Mo. The porosity and density were also influenced by changing the β-phase. EBSD analysis shows the increase in β-phase with the addition of Zr. The overall results indicated that the percentage of β-phase greatly affects the mechanical properties for the specimens.