喷射成形FGH4095的热变形行为

Hot Deformation Behavior of Spray Formed FGH4095

为了给喷射成形FGH4095热加工工艺设计的数值模拟提供基本材料性质数据,采用Gleeble-3800研究了喷射成形高温合金FGH4095在1050~1140℃时,应变速率为0.001~10.0 s-1的热变形行为,并使用双曲正弦模型建立了喷射成形FGH4095的本构方程,经验表明采用本构方程计算的结果与实验值符合较好,为喷射成形FGH4095热加工过程的数值模拟提供了准确的材料模型。

For the numerical simulation of hot working process of spray-formed FGH4095, the high temperature deformation behavior of spray-formed FGH4095 was studied in the different deformation temperatures(1050~1140 ℃) and different strain rates(0.001~10.0 s-1) using Gleeble 3800 thermal simulator. The constitutive equations is established with the sinh model. The calculative results are consistent with the experimental data. It indicates that the accurate material model has been provided for the numerical simulation for hot working process of spray-formed FGH4095.