| 热轧中厚板组织-性能预测及软件开发 |
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| 引用本文： | 许云波,刘相华,王国栋,谢瑞萍,金永春.热轧中厚板组织-性能预测及软件开发[J].钢铁,2006,41(3):51-54. |
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| 作者姓名： | 许云波 刘相华 王国栋 谢瑞萍 金永春 |
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| 作者单位： | 1. 轧制技术及连轧自动化国家重点实验室(东北大学),辽宁,沈阳,110004
2. 首钢总公司技术研究院,北京,100041 |
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| 基金项目： | 中国科学院资助项目
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辽宁省博士科研项目 |
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| 摘 要： | 以热力学和动力学理论为基础,开发了组织性能预测系统,并在首钢中厚板厂实现应用.预测了钢板屈服强度、抗拉强度随工艺及冷却参数的变化,预测结果和实测值吻合较好.随着冷却速率的增加,铁素体体积分数减少,晶粒尺寸变细.同样,成品厚度较大时,铁素体晶粒尺寸较大,铁素体体积分数变化不大.待温厚度为成品厚度的2倍左右,可以使Q235中板获得良好的力学性能.
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| 关 键 词： | 再结晶 物理冶金模型 热轧中厚板 性能预测 软件开发 |
| 文章编号： | 0449-749X（2006）03-0051-04 |
| 修稿时间： | 2005-03-20 |
Prediction and Software Development of Microstructure and Properties of Hot Rolled Steel Plates |
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| XU Yun-bo,LIU Xiang-hua,WANG Guo-dong,XIE Rui-ping,JIN Yong-chun.Prediction and Software Development of Microstructure and Properties of Hot Rolled Steel Plates[J].Iron & Steel,2006,41(3):51-54. |
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| Authors: | XU Yun-bo LIU Xiang-hua WANG Guo-dong XIE Rui-ping JIN Yong-chun |
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| Affiliation: | 1. The State Key Laboratory of Rolling Technology and Automation, Northeastern University, Shengyang 110004, Liaoning, China; 2. Shougang Research Institute of Technology, Beijing 100041, China |
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| Abstract: | On the basis of thermodynamics and kinetics, the microstructure-property prediction system was developed and successfully applied at Shougang plate plant. The variation of yield strength and tensile strength of steel plate with process parameters can be predicted. The predicted results are in good agreement with measured ones. The transformed ferrite volume fraction increases and grain size decreases with the increase of cooling rate. With the increase of steel plate thickness, the average ferrite grain size increases and the change of ferrite volume fraction is very small. When the thickness of intermediate rolling piece is two times of final product, good strength and superior toughness can be obtained. |
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| Keywords: | recrystallization physical and metallurgical model hot-rolled plate property prediction software de-velopment |
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