| Nb-Ti微合金钢的静态再结晶行为 |
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| 引用本文： | 陈俊,周砚磊,唐帅,刘振宇,王国栋. Nb-Ti微合金钢的静态再结晶行为[J]. 钢铁, 2012, 47(5): 54-58 |
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| 作者姓名： | 陈俊 周砚磊 唐帅 刘振宇 王国栋 |
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| 作者单位： | 东北大学轧制技术及连轧自动化国家重点实验室， 辽宁 沈阳 110819 |
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| 摘 要： | 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℃。
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| 关 键 词： | 微合金钢 静态再结晶 激活能 动力学模型 微观组织 析出物 |
| 收稿时间： | 2011-02-14 |
Static Recrystallization Behavior of Nb-Ti Microalloyed Steel |
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| CHEN Jun,ZHOU Yan-lei,TANG Shuai,LIU Zhen-yu,WANG Guo-dong. Static Recrystallization Behavior of Nb-Ti Microalloyed Steel[J]. Iron & Steel, 2012, 47(5): 54-58 |
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| Authors: | CHEN Jun ZHOU Yan-lei TANG Shuai LIU Zhen-yu WANG Guo-dong |
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| Affiliation: | The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China |
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| Abstract: | 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 ℃. |
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| Keywords: | microalloyed steel static recrystallization activation energy kinetics model microstructure precipitates |
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