Structure, mechanical properties and corrosion resistance of medical alloys ti-10nb-(1-3) mo% (at.)

The structure, phase composition, mechanical properties and corrosion resistance of Ti-10Nb-(1-3) Mo% (at.) alloys after cold rolling and quenching from temperatures of 750, 800 and 850 °C in water were studied. It was found that the alloys after rolling consist of α- and β-phases, and with an increase in the molybdenum content, the amount of the β-phase increases. After quenching from all temperatures, the alloys consist mainly of the α′′-phase, while after quenching from 750 °C there are insignificant amounts of α-, β- and ω-phases. It is shown that heating for quenching to 750 °C has little effect on the grain size. With an increase in the heating temperature to 800 and 850 °C, recrystallization and grain growth occur. Quenching from a temperature above 800 °C leads to an increase in plasticity and a decrease in strength. The lowest Young's modulus (62-63 GPa) with high strength properties is established for Ti-10Nb-1Mo after quenching from 800 and 850 °C.