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Influence of temperature on the properties and phase transformations in Ti-Nb alloys with 2%Al

Quenched alloys from the Ti-Nb system are of considerable scientific and applied 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 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 with the temperature. These results were associated with phase transformations occurring with increasing temperature.

Ti-Nb-2%Al, temperature effects; phase transformations; elastic modulus; internal friction


Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro, em cooperação com a Associação Brasileira do Hidrogênio, ABH2 Av. Moniz Aragão, 207, 21941-594, Rio de Janeiro, RJ, Brasil, Tel: +55 (21) 3938-8791 - Rio de Janeiro - RJ - Brazil
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