Open AccessRadial-shear rolling as a new technological solution for recycling bar scrap of ferrous metals
Author(s) -
Sergey Lezhnev,
Abdrakhman Naizabekov,
Irina Volokitina,
Evgeniy Panin,
Erzhan Kuldeyev
Publication year - 2021
Publication title -
kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ
Language(s) - English
Resource type - Journals
eISSN - 2616-6445
pISSN - 2224-5243
DOI - 10.31643/2021/6445.06
Subject(s) - scrap , materials science , metallurgy , ferrous , shear (geology) , rolling mill , ultimate tensile strength , bar (unit) , composite material , deformation (meteorology) , engineering , mechanical engineering , geology , oceanography
Waste recycling of both ferrous and non-ferrous metals is a useful process for the economy of any country. This paper proposes a new technology for recycling bar scrap of ferrous metals by rolling it in radial-shear rolling mills by producing a commercial product in the form of bars with an ultrafine-grained gradient structure. Studies have shown that the deformation of bar scrap in the form of pieces of reinforcement made of steel grade 18G2S in a radial-shear rolling mill makes it possible to significantly disperse its structure by producing a gradient ultrafine-grained structure, and this, in turn, leads to the elevating of the mechanical characteristics of this steel grade. Thus, the tensile limit of the 18G2S grade steel deformed on the radial-shear rolling mill was 620 MPa (at the initial value of 365 MPa).