摘要
采用Gleeble．3800热模拟机研究了铸态00Cr25Ni7Mo4N双相不锈钢在应变速率为0．1s^-1。10s^-1，变形温度为1000，1200℃下的热变形行为，分析了流变应力与应变速率以及变形温度之间的关系。结果发现在同一应变速率下随温度的升高峰值应力值σp。减小；在同一温度下随着应变速率的减小峰值应力值σp也减小，并获得了在热变形条件下该双相不锈钢的热变形方程以及其它热变形参数，计算出该双相不锈钢的热变形激活能为433kJ／mol。
The high temperature deformation behavior of 00Cr25Ni7Mo4N duplex stainless steel was performed on Gleeble-3800 hot simulator with the strain rates 0.1 - 10s^-1, the deformation temperatures 1000 - 1200℃. The relationship between flow stress and strain rates, as well as the deformation temperature was analyzed. The peak stress σp value decreased with the increasing of deformation temperature at the same strain rate. The hot deformation equation and deformation parameters of the duplex stainless steel were obtained, and the deformation activation energy was 433kJ/mol.
出处
《上海金属》
CAS
2008年第6期4-9,共6页
Shanghai Metals
关键词
双相不锈钢
热变形模拟
动态再结晶
热变形激活能
Duplex Stainless Steel, Hot Deformation Simulation, Dynamic Recrystallization, Hot Deformation Activation Energy
