Аннотация
An increase in the properties of various metals and alloys can be achieved by refining their microstructure using intensive plastic deformation and/or various heat treatment modes. Currently, a few studies have been conducted to identify the effect of radial shear rolling on the evolution of the microstructure and changes in the mechanical properties of bars made of various ferrous and non-ferrous metals and alloys. This paper is devoted to the study of the influence of various modes of pre-heat treatment of 5KHV2S steel on the evolution of its microstructure during subsequent radial-shear rolling using computer modeling in the DEFORM software package. The conducted studies have shown that under the selected modes of pre-heat treatment, although the initial grain size increased, the subsequent radial-shear rolling allowed the sludge to obtain a gradient fine-grained structure in 5KHV2S steel.