| CSP热连轧再结晶临界应变模型研究 |
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| 引用本文： | 戴宇杰,余驰斌,魏路敏.CSP热连轧再结晶临界应变模型研究[J].武汉科技大学学报(自然科学版),2007,30(4):350-352,387. |
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| 作者姓名： | 戴宇杰 余驰斌 魏路敏 |
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| 作者单位： | 1. 武汉科技大学材料与冶金学院,湖北,武汉,430081
2. 武汉钢铁(集团)公司大型轧钢厂,湖北,武汉,430083 |
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| 摘 要： | 通过THERMOMASTER-Z型热／力模拟试验机对CSP生产线上冷轧冲压基板（SPHD）进行了热变形实验，建立了该钢种的临界应变模型以及流动应力-应变模型；分析了试验过程中工艺参数对临界应变、流动应力的影响。结果表明，变形温度、变形速率是影响临界应变的主要因素，当热变形达到临界应变时，将发生动态再结晶，同时造成变形抗力的波动。
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| 关 键 词： | 临界应变模型 流动应力-应变模型 |
| 文章编号： | 1672-3090（2007）04-0350-04 |
| 修稿时间： | 2006-12-11 |
Critical strain model of post-rolling recrystallization of CSP hot rolling strip |
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| Dai Yujie,Yu Chibing,Wei Lumin.Critical strain model of post-rolling recrystallization of CSP hot rolling strip[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2007,30(4):350-352,387. |
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| Authors: | Dai Yujie Yu Chibing Wei Lumin |
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| Institution: | 1. College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;2. Large Rolling Plant,Wuhan Iron and Steel Corporation, Wuhan 430083, China |
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| Abstract: | Hot deformation experiment was carried out on the CSP cold rolled sheet used for stamping by means of THERMOMASTER-Z thermal simulation machine, and the models of critical strain and flow stress deformation of the steel were established. The analysis of the effect of technological parameters on the critical strain and the flow stress in the process of experiment shows that deforming temperature and deforming rate are the main factors that affect the critical strain and when hot deformation reaches the critical strain, the flow stress will be affected and the dynamic recrystallization will take place. |
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| Keywords: | CSP SPHD |
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