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In order to perform numerical simulation of forging and determine the hot deformation processing parameters for 30Cr2Ni4MoV steel,the compressive deformation behaviors of 30Cr2Ni4MoV steel were investigated at the temperatures from 970to 1 270℃and strain rates from 0.001to 0.1s-1 on a Gleeble-3500thermo-mechanical simulator.The flow stress constitutive equations of the work hardening-dynamical recovery period and dynamical recrystallization period were established for 30Cr2Ni4MoV steel.The stress-strain curves of 30Cr2Ni4MoV steel predicted by the proposed model well agreed with experimental results,which confirmed that the proposed equations can be used to determine the hot deformation processing parameters for 30Cr2Ni4MoV steel.
In order to perform numerical simulation of forging and determine the hot deformation processing parameters for 30Cr2Ni4MoV steel, the compressive deformation behaviors of 30Cr2Ni4MoV steel were investigated at the temperatures from 970to 1 270 ° C and strain rates from 0.001to 0.1s-1 on a Gleeble- 3500thermo-mechanical simulator. The flow stress constitutive equations of the work hardening-dynamical recovery period and dynamical recrystallization period were established for 30Cr2Ni4MoV steel. The stress-strain curves of 30Cr2Ni4MoV steel predicted by the proposed model well agreed with experimental results, which confirmed that the proposed equations can be used to determine the hot deformation processing parameters for 30Cr2Ni4MoV steel.