通过双道次压缩试验研究了Nb-Ti微合金钢的静态再结晶行为，确定了应变诱导沉淀析出前Nb-Ti微合金钢的静态再结晶激活能，并建立了静态再结晶动力学模型。采用面积法及积分-能量法计算的软化率，很好地反映了微合金钢的静态再结晶行为及应变诱导沉淀析出行为。应变诱导沉淀析出的鼻尖温度在900～925℃之间，静态再结晶的临界温度（SRCT）高于950℃。
The static recrystallization behavior of Nb-Ti microalloyed steel was investigated by two-stage interrupted compression testing. The static recrystallization activation energy of Nb-Ti microalloyed steel was determined and the static recrystallization kinetics model was established before strain-induced precipitation. The area measurement method and the integral-energy approach were used to calculate softening ratio which well reflected static recrystallization behavior and strain-induced precipitation behavior of the microalloyed steel. The softening ratio changes well reflect the evolution of microstructure and precipitates.The nose temperature of strain-induced precipitation was between about 900℃and 925℃,and the static recrystallization critical temperature was higher than 950℃.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%