Characterization of hot deformation behavior of TC32 titanium alloy

The hot deformation behavior of TC32 alloy is investigated in the temperature range of 873~948°C and strain rate range of 0.01, 0.1, 1, and 10s−1 by hot compression experiments, and the constitutive relationship of TC32 alloy is established on the base of the Arrhenius equations. It is found that, with an increase in deformation temperature and the strain rate reduction, the flow stress decreases, and the deformation mechanisms of TC32 alloy exhibit dynamic recovery feature within the high-temperature region and recrystallization feature within the low-temperature one. Deformation activation energy values are 404.7 kJ/mol in the alpha-beta region and 526.6 kJ/mol in the beta region. Finally, the constitutive equation of TC32 titanium was established.