摘要
采用Gleeble-1500型热模拟试验机研究了不同热变形条件下Q235钢动态再结晶过程中的温度变化和静态软化行为。结果表明:该钢在应变速率1 s-1下变形发生动态再结晶时,不仅变形抗力下降,试样的温度也有降低,而在高应变速率(5,10s-1)下变形发生动态再结晶时,试样温度呈升高趋势;双道次800℃和850℃轧制变形间隙时,试样均发生了20%～95%的软化。
Temperature change during dynamic recrystallization process and static softening behavior were studied under different thermal deformation conditions on Gleeble-1500 thermal simulator. The results show that dynamic recrystallization of the steel occured when deformed at the strain rate of ls^-1, and the deformation resistance declined and the temperature of samples decreased. While the sample temperature increased at the high strain rate of 5, 10 s^-1. The sample had softening of 20%-95% in double-pass deformation interval time at 800 and 850℃.
出处
《机械工程材料》
CAS
CSCD
北大核心
2011年第1期97-99,共3页
Materials For Mechanical Engineering
关键词
动态再结晶
静态软化
温度
Q235钢
dynamic recrystallization
static softening
temperature
Q235 steel
