A Model and Experimental Validation to Predict Heating Rates for Overlap Between Ferrite Recrystallization and Austenite Transformation in Dual Phase Steel Manufacture

被引:10
作者
Bandi, Bharath [1 ]
van Krevel, Joost [2 ]
Aslam, Numan [3 ]
Srirangam, Prakash [1 ]
机构
[1] Univ Warwick, WMG, Coventry CV4 7AL, W Midlands, England
[2] Tata Steel, Res & Dev, 3H36,POB 10000, NL-1970 CA Ijmuiden, Netherlands
[3] Tata Steel, Res & Dev, Coventry CV4 7AL, W Midlands, England
关键词
MECHANICAL-PROPERTIES; ANNEALING TEXTURE; MICROSTRUCTURE; KINETICS; PLASTICITY; EVOLUTION; BEHAVIOR; STRAIN;
D O I
10.1007/s11837-019-03358-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A systematic theoretical and experimental study has been conducted to predict the heating rates required to obtain a pre-defined percentage of overlap between the ferrite recrystallization process and the austenite formation process in dual phase steel manufacture. Isothermal recrystallization kinetics for three different cold-reduced low-carbon micro-alloyed steels (50%, 60%, and 75%) with ferrite-pearlite-bainite initial microstructures was evaluated. Using various experimentally determined rate kinetic constants and critical temperatures, a continuous heating rate model which predicts the heating rate required for a predefined amount of overlap was successfully developed. The model predicted the heating rates required for a predefined 1%, 15%, 34%, 67%, 88% and 99% of overlap to be 0.2 degrees C/s, 0.9 degrees C/s, 1.8 degrees C/s, 7 degrees C/s, 50.5 degrees C/s and 511 degrees C/s, respectively. The experimentally determined recrystallization percentage values validated the predicted heating rates.
引用
收藏
页码:1386 / 1395
页数:10
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