Temperature effect on the elastic modulus, internal friction and related phase transformations in Ti–Nb–2%Al quenched alloys

Quenched alloys from the Ti–Nb system are of considerable scientific and applied practical interest due to properties such as superconductivity, shape memory effect and high damping capacity. In this work, Ti–Nb quenched alloys with 2 wt.% Al, and Nb content varying from 15 to 40% were investigated with respect to the effects on phase transformations, internal friction and elastic modulus caused by the temperature up to 800 °C. The results showed that the internal friction presented peaks and the elastic modulus displayed minimum values associated with the increasing temperature. These results were also correlated to phase transformations occurring with increasing temperature.