奥氏体不锈钢Z2CN19-10高温形变行为及组织结构研究

Research on Deformation Behavior and Microstructure of Z2CN19-10 Austenitic Stainless Steel at High Temperature

使用Gleeble-3180热模拟力学实验机,采用双道次压缩方法研究了Z2CNN19-10奥氏体不锈钢的高温形变行为。还研究了该钢的静态软化行为。结果表明：随着变形温度的降低,应变速率的增加,变形量的增大,流变应力升高。变形温度较高时,即1050、1150℃,实验钢发生了再结晶;应变速率增加,变形量较大时,变形后静态再结晶明显。变形温度对静态软化行为有显著影响,温度越高,静态软化进行的越迅速。

Using Gleeble-3180 thermal mechanical simulator, the high temperature deformation behavior of Z2CNN 19- 10 austenitic stainless steel was studied by double pass compression methods. The static softening behavior of the steel was studied. The results show that with the deformation temperature decreasing, the strain rate increasing, the deformation increasing, the flow stress increases. When the deformation temperature is high, 1050℃ and 1150 ℃, the recrystallization of the experimental steel occurs. When the strain rate increases and the deformation is large, the static recrystallization after deformation is obvious. The deformation temperature has a very significant effect on the static softening behavior. The higher the temperature, the quicker the static softening proceeds.