Influence of temperature-deformation parameters of thermomechanical treatment on the structure and mechanical properties of low-carbon alloy steel

Keywords

low-carbon steel, thermomechanical treatment, structure, mechanical pro­perties.

Cite as

Parusov E. V., Chuiko I. M., Gubenko S. I., Oliinyk E. V., and Parusov O. V. Influence of temperature-deformation parameters of thermomechanical treatment on the structure and mechanical properties of low-carbon alloy steel. Physicochemical Mechanics of Materials. 2025. 61(1), 044-051.

DOI: https://doi.org/10.15407/pcmm2025.01.044

Abstract

The influence of thermomechanical treatment conditions on the structure and mechanical properties of low-carbon alloyed CrMoV1Si steel (analogue Sv-08KhGSMFA steel) was analy­zed. The obtained dependences of hardness, yield strength, and ultimate tensile strength on the thermomechanical treatment parameters made it possible to determine the optimal temperature range for the finishing of hot deformation of wire rod from the studied steel from the point of view of the metal maximum softening under the stationary mode condition of its post-deformation cooling (1050–1100°С). The mechanisms of structural transformations in hot-deformed steel are assessed and their influence on the formation of indicators of the mechanical properties of the metal after cooling is substantiated. The determined temperature range for the finishing of hot deformation is an important technological parameter in the development and implementation of the mode of softening thermomechanical treatment of steel wire rod on the Stelmor two-stage water-air cooling line.

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