Influence of radial-shear drawing on the formation of gradient microstructure in steel rods
Volokitina I.E. Volokitin A.V.
February 2025Springer
Metallurgist
2025#68Issue 101462 - 1467 pp.
This paper presents a technology for processing carbon steel rods. The technology involves the deformation of carbon steel rods by radial-shear rolling on the RSR-10/30 mill, followed by wire drawing on a V-I/550 M drawing mill. During the simultaneous processing of a billet through crossed rolls and drawing dies, tensile stresses are generated, which result in a reduction in drawing force. These tensile stresses facilitate the formation of a more uniform profile in the drawn billet. As a result of deformation, we obtained rods with a gradient microstructure. The surface layer of the rod was characterized by a significant refinement, with an average ferrite grain size of 0.5 μm. The neutral zone exhibited a less pronounced deformation, resulting in a mildly refined structure, with an average ferrite grain size of two µm. In the central zone, the microstructure is represented by coarse grains with an average size of seven µm.
621.778 , Drawing , Mechanical properties , Microstructure , Rod , Steel
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Karaganda Industrial University, Temirtau, Kazakhstan
Karaganda Industrial University
10 лет помогаем публиковать статьи Международный издатель
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