Structure, Mechanical Properties, and Corrosion Resistance of Medical Ti–10 at % Nb–(1–3 at %) Mo Alloys

Abstract—The structure, phase composition, mechanical properties, and corrosion resistance of the Ti–10 at % Nb–(1–3 at %) Mo alloys subjected to cold rolling and water quenching from temperatures of 750, 800, and 850°C are studied. The rolled alloys are found to consist of the α and β phases; as the molybdenum content increases, the content of the β phase increases. After quenching from all considered temperatures, the alloys mainly consist of the α" phase; in this case, after quenching from 750°C, insignificant amounts of the α, β, and ω phases are present. The heating before quenching from 750°C is shown to slightly affect the grain size. As the temperature increases to 800 and 850°C, the recrystallization and grain growth occur. Quenching from the temperature above 800°C leads to the increase in the plasticity and decrease in the strength. The Ti–10 at % Nb–1 at % Mo alloy quenched from temperatures of 800 and 850°C is found to demonstrate the minimum Young’s modulus (62–63 GPa) and high strength properties.