Simulation of thermal compression and texture evolution of TB6 titanium alloy

Abstract The isothermal constant strain rate compression experiment of TB6 titanium alloy was carried out by a Thermecmaster-Z thermal simulator and the stress-strain curves under corresponding conditions was analyzed and discussed. The thermal compression process was simulated by finite element simulation software, and the finite element software was redeveloped to simulate the ODFs of this alloy after experimental at the same time. The results showed that the stress-strain curves by numerical simulation were consistent with the experimental results. The distribution of equivalent stress and strain was uneven, the maximum stress and strain occurred at the center of the specimens. The stress and strain increased with the decrease of deformation temperature or the increase of strain rate. The simulated ODFs had a high agreement with the ODFs by EBSD technology. After thermal compression, the major texture components of the alloy were R-CubeND {001} and Cube {001} and they had certain heredity. Increasing the deformation temperature or strain rate can intensify the major texture components and promoted the transition from Y {111} texture component to Z {111} texture component. Meanwhile, the intensity of S {123}, Copper {112}, Y {111} and Z {111} texture components were reduced.