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研究材料的热变形行为及建立其本构模型是进行材料加工与模拟的基础。通过对TB6钛合金热变形行为分析,表明流变应力受应变速率的影响较显著,而变形温度对流变应力的影响程度与应变速率的大小有关。采用Arrhenius型双曲正弦方程建立了TB6钛合金流变应力本构模型。研究变形条件对TB6钛合金流变应力的影响。结果表明,可通过控制应变速率和变形激活能来控制热加工的应力水平和力能参数,为TB6钛合金塑性加工过程控制和模拟提供前提条件。
Studying the thermal deformation behavior of materials and establishing their constitutive models are the basis for material processing and simulation. The analysis of the thermal deformation behavior of the TB6 titanium alloy shows that the flow stress is more affected by the strain rate, while the effect of the deformation temperature on the flow stress is related to the strain rate. The flow stress constitutive model of TB6 titanium alloy was established by Arrhenius hyperbolic sine equation. Effect of Deformation Conditions on Rheological Stress of TB6 Titanium Alloy. The results show that the stress level and the energy parameter can be controlled by controlling the strain rate and deformation activation energy, which provides the preconditions for the control and simulation of plastic processing of TB6 titanium alloy.