摘要 The process of plane strain compression of 06Cr19Ni9NbN steel was carried out in the temperature range of 1000–1200 C and the reduction ratio range of 10–50%. Combining the finite element numerical simulation, a new constitutive model of thermal deformation was established, which provides the theoretical basis to optimize the plane strain compression process of the steel. The temperature and grain size at different regions were achieved by experiment and simulation, respectively. According to the results, the mathematical models of stress and temperature during the plane strain compression were established by mathematical analysis method. The new temperature models were established in three regions, respectively, and the stress models took account of the variation of temperature and strain rate. Finally, by comparing the results of calculation, numerical simulation and experiment, the accuracy and validity of these mathematical models were verified.
Abstract：The process of plane strain compression of 06Cr19Ni9NbN steel was carried out in the temperature range of 1000–1200 C and the reduction ratio range of 10–50%. Combining the finite element numerical simulation, a new constitutive model of thermal deformation was established, which provides the theoretical basis to optimize the plane strain compression process of the steel. The temperature and grain size at different regions were achieved by experiment and simulation, respectively. According to the results, the mathematical models of stress and temperature during the plane strain compression were established by mathematical analysis method. The new temperature models were established in three regions, respectively, and the stress models took account of the variation of temperature and strain rate. Finally, by comparing the results of calculation, numerical simulation and experiment, the accuracy and validity of these mathematical models were verified.
JIAO YONGXING,XU Yue,LIU, et al. Mathematical model of coupled thermo-mechanical behavior during plane strain compression of 06Cr19Ni9NbN steel[J]. Journal of Iron and Steel Research International, 2018, 25(11): 1179-1188.
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2018, Vol. 25 
