【摘要】 采用Gleeble-3800热模拟试验机开展了Inconel625合金变形温度为950～1200℃、应变速率为0.001～10 s^-1的热压缩试验，分析了其热变形行为和不同变形条件下的微观组织演化，构建了Inconel625合金的热加工图。结果表明，Inconel625合金的流变应力随应变速率增加而升高，随变形温度升高而降低；变形温度越高、压缩应变速率越低，越容易发生动态再结晶。Inconel625合金最佳热加工工艺参数范围为变形温度1010～1050℃,应变速率0.01～0.13 s^-1。更多还原

【Abstract】 Thermal compression test of Inconel625 alloy with deformation temperature of 950-1200 ℃ and strain rate of 0.001-10 s^-1 was carried out by Gleeble-3800 thermal simulation testing machine. The hot deformation behavior and microstructure evolution under different deformation conditions were analyzed. The hot processing map of the Inconel625 alloy was constructed. The results show that the flow stress of the Inconel625 alloy increases with the increase of strain rate and the decrease of deformation temperature. The higher the deformation temperature and the lower the compression strain rate, the more prone to dynamic recrystallization. The optimum hot processing parameters of the Inconel625 alloy are as follows: deformation temperature of 1010-1050 ℃, strain rate of 0.01-0.13 s^-1.更多还原