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Modeling of Microstructure Evolution and Mechanical Properties of Steel Plates Produced by Thermo-Mechanical Control Process and Its on-line application

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Journal of Materials Science & Technology 2005年第1期21卷 13-16页

作者： Yunbo XU, Yongmei YU, Xianghua LIU and Guodong WANGState Key Laboratory of Rolling Technology and Automation, Northeastern University, P.O. Box 105, Shenyang 110004, ChinaPh.D., Lab. of Rolling Technol. Northeastern Univ. P.O. Box 105 Shenyang 110004 China

An integrated metallurgical model was developed to predict microstructure evolution and mechanical properties of low-carbon steel plates produced by TMCP. The metallurgical phenomena occurring during TMCP and mechanical properties were predicted for different process parameters. In the later passes full recrystallization becomes difficult to occur and higher residual strain remains in austenite after rolling. For the reasonable temperature and cooling schedule, yield strength of 30 mm plain carbon steel plate can reach 310 MPa. The first on-line application of prediction and control of microstructure and properties (PCMP) in the medium plate production was achieved. The predictions of the system are in good agreement with measurements.

关键词： Thermo-mechanical control process Metallurgical model Low-carbon steel Prediction and control of microstructure and properties on-line application

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Development and application of Process Modeling Technology for 2050 Hot Strip Rolling Mill at Baosteel

Development and Application of Process Modeling Technology f...

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技术创新与循环经济——第二届宝钢学术年会

作者： LIU Zhengdong~1,TANG Guangbo~1,CHENG Jiefeng~1,GAN Yong~1,WANG Wei~2,ZHANG Pijun~2 (1.ISM,Central Iron and Steel Research Institute,Beijing 100081,China 2.Baoshan Iron & Steel Co.,Ltd.,Shanghai 201900,China)

＜正＞An integrated process modeling system had been built,in which thermal,mechanical and metallurgical processes during hot strip rolling were numerically coupled *** structure of the process models was briefly introduced in this *** developed process models can be used to simulate the thermal, mechanical and metallurgical processes evolutions of the whole hot rolling process,from reheating furnace to cooling after coiling,and to predict the mechanical properties of the final product of the 2050 hot strip rolling mill at *** system was verified and optimized against more than 1000 industrial coils of about 10 steel grades and runs on - line *** difference between predicted and measured temperature and strength is±20℃（on-line） and±21 MPa（off-line） respectively.

关键词： hot strip rolling process modeling microstructure evolution on-line application

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