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�ͺϽ��Q345B��̬�ٽᾧ����ѧģ�͵��о� |
MA Bo Peng Yan Peng Bin JIA Yun-fei LIU |
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Abstract The static recrystallization behavior of low-alloy steel Q345B during double-pass hot compression deformation tests was investigated in the temperature range of 900-1000��, the true strain range of 0.15-0.25 and the interpass time range of 0.5-50s on Gleeble-3500 thermo-simulation machine. The results show that static recrystallization during the interpass time is observed. As the deformation temperature and strain increase, softening caused by static recrystallization is obvious. According to analyzing and calculating the data of thermo-simulation, the static recrystallization activation energy was obtained and static recrystallization kinetics model was set up. Finally, the error analysis of static recrystallization kinetics model proved that the model had good accuracy. Therefore, this model has a certain reference, providing a theoretical basis for SRX, and contributing to the development of multipass hot rolling process, in order to control the rolling process more accurately.
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Received: 06 July 2009
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Corresponding Authors:
MA Bo
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