摘要
在Gleeable-3800热/力模拟试验机上采用双道次压缩法,研究了一种高Ti微合金钢在奥氏体区变形后道次间隔时间内的静态软化行为,分析了变形温度和间隔时间对静态再结晶行为的影响规律,采用应力补偿法计算了静态再结晶分数。结果表明,变形温度、道次间隔时间对Ti微合金钢静态再结晶行为影响显著,变形温度越高,间隔时间越长,静态再结晶进行得越迅速;确定了Ti微合金钢的静态再结晶激活能为412.56 k J/mol,同时建立了静态再结晶动力学模型。
The static soften behavior of high Ti-microalloyed steel within the interval of passes was investigated with double-pass compression method using Gleeable-3800 thermal-mechanical simulator. The influence of temperature and interval time was analyzed and the softening percentage of static recrystallization under different conditions was defined by the 0.2% stress offset method. The results show that the deformation temperature and interval time have a significant effect on the static recrystallization behavior. The higher the deformation temperature is and the longer the interval time is, the faster static recrystallization proceeds. The static recrystallization activation energy of Ti-microalloyed steel is about 412.56 kJ/mol and the static recrystallization dynamics model is described.
作者
韩杰
HAN Jie(Shandong Steel Group （SL） Mine Ltd., Jinan 250101, China)
出处
《山东冶金》
CAS
2018年第1期30-32,38,共4页
Shandong Metallurgy
关键词
高Ti钢
静态再结晶
热模拟
动力学模型
激活能
high Ti-microalloyed steel
static recrystallization
thermal simulation
kinetics model
activation energy
