| 非调质钢F40MnV高温流动应力模型研究 |
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| 引用本文： | 王进,陈军,赵震,阮雪榆. 非调质钢F40MnV高温流动应力模型研究[J]. 塑性工程学报, 2005, 12(5): 54-57,62 |
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| 作者姓名： | 王进 陈军 赵震 阮雪榆 |
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| 作者单位： | 上海交通大学,国家模具CAD工程研究中心,上海,200030 |
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| 基金项目： | 国家自然科学基金项目（50275094）. |
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| 摘 要： | 采用Gleeb1500热模拟实验机对F40MnV非调质钢进行实验研究,根据经典应力-位错关系和动态再结晶动力学方程,分别对加工硬化-动态回复和动态再结晶两阶段建立流动应力模型,然后统一表示为完整的F40MnV结构钢高温流动应力模型。根据实验结果计算拟合了模型中各参数。采用建立的流动应力模型计算实验条件下的流动应力,计算结果与实验结果吻合较好。并将所建立的流动应力模型用于F40MnV非调质钢热塑性成形数值模拟分析。
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| 关 键 词： | F40MnV 非调质钢 流动应力 动态回复 动态再结晶 |
| 文章编号： | 1007-2012（2005）05-0054-04 |
| 收稿时间： | 2005-03-29 |
| 修稿时间： | 2005-08-02 |
Research on flow stress model of F40MnV non-quenched and tempered steel during hot forming |
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| WANG Jin,CHEN Jun,ZHAO Zhen,RUAN Xue-yu. Research on flow stress model of F40MnV non-quenched and tempered steel during hot forming[J]. Journal of Plasticity Engineering, 2005, 12(5): 54-57,62 |
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| Authors: | WANG Jin CHEN Jun ZHAO Zhen RUAN Xue-yu |
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| Abstract: | Hot compression test of F40MnV non-quenched and tempered steel is finished on Gleeble 1500 to determine the flow stress model for F40MnV steel, and the flow stress models are approximated for work harding-dynamical recovery period and dynamical recrystallization period based on classical stress-dislocation relation and the kinematics of the dynamic recrystallization, respectively, which consist the flow stress model for the whole forming process. All parameters used in the flow stress models are calculated based on the testing data, and the flow stress model is suitable to be used for the hot forging process numerical simulation. |
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| Keywords: | F40MnV non-quenched and tempered steel dynamical recovery dynamical recrystallization |
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