| 加工硬化奥氏体→先共析铁素体相变动力学及机制 |
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| 引用本文： | 刘振宇,王国栋.加工硬化奥氏体→先共析铁素体相变动力学及机制[J].东北大学学报(自然科学版),1994,15(4):379-383. |
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| 作者姓名： | 刘振宇 王国栋 |
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| 作者单位： | 轧制技术及连轧自动化国家重点实验室 |
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| 摘 要： | 试验研究了Ｃ－Ｍｎ钢加工硬化奥氏体→先共析铁素体等温转变规律，结果发现，加工硬化使相变孕育期缩短的主要原因在于铁素体在奥低体晶界处成核能力的提高，ｌｎｌｎ（１／１－ＸＦ）与ｌｎｔ之间的关系为二段直线，本文对形核自由能变化和显微组织演变进行了分析，并给出了合理的解释。
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| 关 键 词： | 奥氏体 控制轧制 钢 形变热处理 |
On the Transformation Kinetics and Mechanism from WorkHardened Austenite to Proeutectoid Ferrite in C-Mn Steels |
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| Liu Zhenyu,Wang Guodong,Zhang Qiang.On the Transformation Kinetics and Mechanism from WorkHardened Austenite to Proeutectoid Ferrite in C-Mn Steels[J].Journal of Northeastern University(Natural Science),1994,15(4):379-383. |
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| Authors: | Liu Zhenyu Wang Guodong Zhang Qiang |
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| Institution: | Liu Zhenyu;Wang Guodong;Zhang Qiang |
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| Abstract: | The isothermal transformation behaviors from work-hardened austenite to proeutectoid ferritehas been studied experimentally.It was found that the shortening of incubation period due to work-hardeningmainly results from the enhancement of ferrite nucleation abilities at austenite grain boundaries,and that therelation of lnln vs lnt consists of two portions of straight line. Based on experimental results,ananalysis is made in terms of free energy changes and microstructure evolutions with reasonable explainationgiven. |
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| Keywords: | work-hardened austenite isothermal transformation microstructure |
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