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| Fe-25Mn-3Si-3AlTWIP钢等温压缩流变应力的研究 | |
| 引用本文： | 李德君,冯耀荣,上官丰收,赵文轸,刘强.Fe-25Mn-3Si-3AlTWIP钢等温压缩流变应力的研究[J].钢铁研究学报,2011,23(7):53-59. |
| 作者姓名： | 李德君 冯耀荣 上官丰收 赵文轸 刘强 |
| 作者单位： | 1. 西安交通大学材料科学与工程学院,陕西西安710049 中国石油集团石油管工程研究院,陕西西安710065 2. 中国石油集团石油管工程研究院,陕西西安,710065 3. 西安交通大学材料科学与工程学院,陕西西安,710049 |
| 基金项目： | 国家高技术研究发展计划项目(2006AA06A) |
| 摘 要： | 在Gleeble-1500D热模拟试验机上采用等温压缩试验研究了高锰奥氏体Fe-25Mn-3Si-3AlTWIP钢在变形温度为900～1100℃，变形速率为0．01～1s。条件下的热变形行为。研究结果表明，Fe-25Mn-3Si-3Al钢热变形流变应力曲线呈现明显的动态再结晶特征，出现了一个明显的流变应力峰值，峰值之后... |
| 关 键 词： | TWIP钢 热变形 流变应力 热变形激活能 本构方程 |
Study on the Flow Stress of Fe-25Mn-3Si-3Al TWIP Steel During the Hot Compression |
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| LI De-jun,FENG Yao-rong,SHANGGUAN Feng-shou,ZHAO Wen-zhen,LIU Qiang.Study on the Flow Stress of Fe-25Mn-3Si-3Al TWIP Steel During the Hot Compression[J].Journal of Iron and Steel Research,2011,23(7):53-59. | |
| Authors: | LI De-jun FENG Yao-rong SHANGGUAN Feng-shou ZHAO Wen-zhen LIU Qiang |
| Affiliation: | LI De-jun1,2,FENG Yao-rong2,SHANGGUAN Feng-shou2,ZHAO Wen-zhen1,LIU Qiang2 |
| Abstract: | The hot deformation behaviors of Fe-25Mn-3Si-3Al TWIP steel were investigated by isothermal compression on Gleeble-1500D thermal simulator at the temperature range of 900 to 1100℃ and the strain rate range of 0.01 to 1s-1. The results show the true stress-strain curves of Fe-25Mn-3Si-3Al steel present a characteristic of dynamic recrystallization which often appears during the hot deformation process of metals and alloys with low stacking fault energies. In true stress-strain curves, a single peak stress is observed, which is followed by a steady-state stress. The hot compression deformation of Fe-25Mn-3Si-3Al steel can be represented by Arrhenius model. The constitutive equation of Fe-25Mn-3Si-3Al steel for hot compression deformation is calculated by a linear regression analysis. The activation energy for hot deformation of the experimental steel is 432.95kJ/mol. |
| Keywords: | TWIP steel hot deformation flow stress activation energy for hot deformation constitutive equation |
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