C-Mn-Nb钢在控轧控冷条件下相变后铁素体晶粒尺寸的预测

钢铁研究学报, 2006, 18(9): 36-39.

1.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,110004

2.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,110004

3.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,110004

4.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,110004

基金项目: 国家自然科学基金(50504007;50474086;50334010)

Prediction of Ferrite Grain Size in C-Mn-Nb Steel After Phase Transformation During Controlled Rolling and Controlled Cooling

基于相变动力学和热力学原理,讨论了椭球形铁素体晶核在奥氏体晶界形核及长大的动力学,在模型中引入变形和冷却的作用,提出了预测C-Mn-Nb钢经控轧控冷后铁素体晶粒尺寸的方法.用该方法进行的计算机模拟结果和实验结果吻合良好,表明这种方法可用来模拟该相变过程.

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