| 35CrMo结构钢热塑性变形流动应力模型 |
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| 引用本文： | 王进,陈军,张斌,赵震,阮雪榆.35CrMo结构钢热塑性变形流动应力模型[J].上海交通大学学报,2005,39(11):1784-1786,1791. |
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| 作者姓名： | 王进 陈军 张斌 赵震 阮雪榆 |
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| 作者单位： | 1. 上海交通大学,国家模具CAD工程研究中心,上海,200030
2. 宝钢集团上海第一钢铁有限公司技术中心,上海,200431 |
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| 基金项目： | 国家自然科学基金资助项目（50275094） |
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| 摘 要： | 采用Gleeble 1500热模拟实验机对35CrMo结构钢进行实验研究，根据经典应力一位错关系和动态再结晶动力学方程分别对加工硬化一动态回复和动态再结晶两阶段建立流动应力模型，并统一表示为完整的35CrMo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的各参数．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．所建立的流动应力模型可以直接用于35CrMo结构钢热成形过程的数值模拟分析．
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| 关 键 词： | 35CrMo结构钢 流动应力 动态回复 动态再结晶 |
| 文章编号： | 1006-2467（2005）11-1784-03 |
| 收稿时间： | 2004-12-25 |
| 修稿时间： | 2004-12-25 |
The Flow Stress Model of 35CrMo Structural Steel During Hot Forming |
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| WANG Jin,CHEN Jun,ZHANG Bin,ZHAO Zhen,RUAN Xue-yu.The Flow Stress Model of 35CrMo Structural Steel During Hot Forming[J].Journal of Shanghai Jiaotong University,2005,39(11):1784-1786,1791. |
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| Authors: | WANG Jin CHEN Jun ZHANG Bin ZHAO Zhen RUAN Xue-yu |
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| Abstract: | A hot compression test of 35CrMo structural steel was finished on Gleeble 1500 to determine the flow stress model for 35CrMo steel, and the flow stress models were approximated for work hardingdynamical recovery period and dynamical recrystallization period based on traditional stress-dislocation relation and the kinematics of the dynamic recrystallization, respectively, which compose the flow stress model for the whole forming process. All parameters used in the flow stress models were calculated based on the testing data. The flow stress model is suitable for the hot forging process numerical simulation. |
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| Keywords: | 35CrMo structural steel flow stress dynamical recovery dynamical recrystallization |
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