| F35MnVN非调质钢热变形中流动应力模型 |
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| 引用本文： | 李君飞,王进,安钰坤.F35MnVN非调质钢热变形中流动应力模型[J].材料热处理学报,2012,33(Z1):121-124. |
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| 作者姓名： | 李君飞 王进 安钰坤 |
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| 作者单位： | 青岛理工大学机械工程学院,山东青岛,266033 |
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| 基金项目： | 山东省自然科学基金项目ZR2010EQ027 |
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| 摘 要： | 采用gleeble-3800热模拟实验机对F35 MnVN非调质钢进行单道次压缩实验,获得不同变形条件下的流动应力-应变曲线.根据laasraoui和Jonas所建立的方程分别对动态回复、动态再结晶两阶段建立流动应力模型,计算出F35MnVN非调质钢热变形激活能为202.9 kJ/mol.通过实验数据计算出模型中的参数,并把模型预测的值与实验所得数据进行了比较,两者吻合较好.
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| 关 键 词： | 流动应力 动态回复 动态再结晶 激活能 |
Model of flow stress of F35MnVN non-quenched and tempered steel during hot deformation |
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| LI Jun-fei,WANG Jin,AN Yu-kun.Model of flow stress of F35MnVN non-quenched and tempered steel during hot deformation[J].Transactions of Materials and Heat Treatment,2012,33(Z1):121-124. |
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| Authors: | LI Jun-fei WANG Jin AN Yu-kun |
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| Affiliation: | (School of Mechanical Engineering,Qingdao Technological University,Qingdao 266033,China) |
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| Abstract: | F35MnVN non-quenched and tempered steel for a single pass compression experiments were finished on gleeble-3800 thermal simulation machine,the flow stress-strain curves were obtained under different deformation conditions.The flow stress models were approximated for dynamical recovery period and dynamical recrystallization period based on the equations had established by laasraoui and Jonas.Hot deformation activation energy of F35MnVN non-quenched and tempered steel was calculated as 202.9KJ/mol.Through the experimental data to calculate the model parameters,the model predictions with the experimental data obtained were compared,a good agreement was acquired. |
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| Keywords: | flow stress dynamic recovery dynamic recrystallization activation energy |
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