Original scientific paper

Study on Arrhenius model of TC6 titanium alloy

R. W. Wang ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. Y. Long ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
L. N. Qi ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
Y. M. Li ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. C. Ji ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China; National Center for Materials Service Safety, University of Science and Technology Beijing, China; School of Mechanical Engineering, University of
Z. M. Cai ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China

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

Hrčak ID:

224741

URI

https://hrcak.srce.hr/224741

Publication date:

1.1.2020.

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