Stabilization of the Hot-Working State of Die Steel during Thermomechanical Treatment

The influence of thermomechanical treatment conditions on the behavior of sparingly alloyed die steel with controlled austenitic transformation during operation (CATO) during deformation at 450–750°C is studied. Austenization at 1150°C, multiple tensile deformation at 450°C, cooling to room temperature, and rapid heating up to 750°C are shown to stabilize the state of hot working and provide the highest hardening of the steel at this temperature.