STUDY OF THE INFLUENCE OF THERMOMECHANICAL TREATMENT TEMPERATURE REGIMES ON THE STRUCTURE AND PROPERTIES OF ROLLED STEEL

The article presents the results of an experimental study of the influence of controlled rolling temperature regimes with accelerated cooling on the microstructure and properties of rolled steel. It is shown that the most effective regime for increasing the plasticity and maintaining the strength properties of steel is the mode of thermomechanical treatment No. 2. The regime under consideration assumes the completion of deformation in the single-phase γ-region near the temperature of the beginning of phase transformations Ar3 and the beginning of accelerated cooling of rolled products in the two-phase (γ + α)-region