The rolling process of titanium alloy bars is mainly by cooling the forging bar stock of larger specifications after rolling. The cooled bar mainly takes the form of needles, thin flakes or coarse flakes. Titanium alloy rolled billets can have strong toughness and tensile properties after rolling and cooling, but the titanium alloy bars at this time do not have the characteristics of high strength and high plasticity. Generally, industrial production requires the processing of titanium alloy bars to form an equiaxed structure with strong tensile and fatigue properties. However, in the actual rolling process, because the billet is cooled at room temperature, the comprehensive performance of the flake structure is restricted, and only through targeted deformation treatment can it be shafted, which is suitable for market demand. Therefore, the axisization of titanium alloy bar billets during the rolling process is an important issue. If the rolling deformation is large, it is easier to improve the structural variability and mechanical properties. When the deformation is small, it will affect the plasticity and strength of the titanium alloy. At the same time, in the rolling process of titanium alloy bars, it is necessary to perform multiple annealing. In this case, the surface temperature of the rolled piece will be rapidly reduced. Bad hair, and easily cause surface cracks. Therefore, the rolling temperature must be properly controlled. The pass becomes a rolling space for temperature control and continuous deformation. Only by recrystallizing a large number of twins can the comprehensive properties of titanium alloy bars be effectively improved.
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