The static recrystallization behavior of steel 30CrMo 60 mm casting slab in interval between double-pass of hot deformation has been tested and studied by Thermecmastor-Z thermal simulator and double-pass compressed method to analysis the effect of temperature (1000 ~ 1150℃)

deformation (0.1-0.22)

strain rate ( 0.1-10 s

-1

) and inlerval between passes (1-80 s) on static recrystallization. Results show that the static recrystallization of steel 30CrMo is improved with increasing temperature

deformation

strain rate and interval between passes ； the static recrystallization activation energy of steel 30CrMo is 184.45 kJ/mol ； a static recrystallization kinetic model is established based on experimental data and the predicted data better meet the experimental data.