利用Gleeble热模拟机进行热压缩实验，温度设为：1473K, 1523 K, 1573 K, 1623 K, 1673K；应变速率设置为0.001 s-1, 0.01 s-1, 0.1 s-1, 1 s-1。得到真应力-真应变曲线。研究变形参数对流动应力的影响；建立流变应力双曲正弦本构模型。

Use the Gleeble thermal simulator to perform the thermal compression experiment, the temperature is set to: 1473K, 1523 K, 1573 K, 1623 K, 1673K; the strain rate is set to 0.001 s-1, 0.01 s-1, 0.1 s-1, 1 s-1 . Obtain the true stress-true strain curve. Study the influence of deformation parameters on flow stress; establish a hyperbolic sine constitutive model of flow stress.