Study on Arrhenius model of TC6 titanium alloy

Abstract

At the deformation temperature of 1 103-1 283 K, with strain rate of 0,01 – 10 s-1, and total strain of 0,7, the deformation behavior of TC6 titanium alloy was studied. The Arrhenius constitutive model is established by using stress - strain data when the strains of TC6 titanium alloy are 0,05, 0,1, 0,2, 0,3, 0,4, 0,5, 0,55, 0,6, and the accuracy of the model was verified. The results show that: the flow stress of TC6 titanium alloy increases as the strain rate increases and decreases as the deformation temperature increases; under different strains, the correlation coefficient (R) between the experimental value and the predicted value is greater than 98 %, and the average relative error (AARE) is lower than 10 %, which suggests that the established model has a higher prediction.

Keywords

• TC6 titanium alloy
• high temperature deformation
• stress
• strain
• Arrhenius constitutive model