|About this Abstract
||NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes
||S-01: Modeling of the Anisotropic Behavior in Plasticity
||Study on Hot Deformation Behavior and Microstructure of 5CrNiMoV Steel using Constitutive Modeling and Processing Map
||Wanhui Huang, Pan Zeng, Liping Lei
|On-Site Speaker (Planned)
The hot deformation behavior of 5CrNiMoV steel was studied by means of isothermal compression test in the temperature range of 850-1250℃ and the strain rate range of 0.001-10/s. Using the peak stress and steady state stress, we studied the dynamic recrystallization-softening factor at different deformation conditions. Additionally, we established the strain-compensated Arrhenius constitutive model of 5CrNiMoV steel, which shows a correlation coefficient of 0.996 between the experimental flow stress and the predicted flow stress. Furthermore, the optical microscopic observation shows that the logarithm of average grain size has a negative correlation linear relationship with the logarithm of Zenner-Hollomon parameter. Ultimately, the processing maps of the studied steel were sufficiently established, which demonstrates by microstructure observation shows the optimum hot working processing parameters of steel 5CrNiMoV are 950-1025℃ and 0.01-0.1/s.