Ultrahigh strength steel wires processed by severe plastic deformation for ultrafine grained microstructure

Abstract

A comprehensive review of recent literature on high strength, fine grained steels has been conducted. While relevant technologies in alloy design, processing and heat treating are included in the present review, the emphasis has been on high carbon steel wire processing technology that can be achieved with 'conventional' wire rolling and drawing processes. The thermomechanical processing of a pearlitic microstructure, followed by cold drawing, is recommended as the process of choice to efficiently produce an ultrafine grained ferrite-cementite microstructure for ultrahigh strength, ultrahigh carbon steel wires.

Novel Magnetic Nanohybrids: From Iron Oxide to Iron Carbide Nanoparticles Grown on Nanodiamonds

“…They are well known for their prominent structural and mechanical properties and have been used as adjuvant agents in concretes and metal alloys [3]. The presence of the most known member of the family of ICs, cementite (θ-Fe 3 C), in pearlitic steels, is the main parameter for the development of the exceptional mechanical properties (high strength and ductility) these technologically and economically important materials possess relative to soft iron [3][4][5][6][7][8][9]. ICs have also been known to possess important catalytic properties, used as relative agents in the Fisher-Tropsch synthetic fuel production process [10][11][12] and carbon nanotube (CNT) synthesis [13][14][15].…”

Fracture Mechanism of 09g2s Low-Alloy Steel Welded Sample Subjected to Heat Treatment and Equal Channel Angular Pressing During Impact Bending

“…Используемые в настоящее время методы интенсивной пластической деформации позволяют упрочнять заготовки, которые имеют однородные по объему свойства [1][2][3][4][5][6][7][8]. Впервые возможность РКУП сварного соединения из низкоуглеродистой стали Ст3сп с К-и Х-образной разделкой кромок заготовок была представлена в [9].…”

Channel Angular Pressing of the Annular Billets from Copper M4

“…In the field of pressure metal treatment, methods of severe plastic deformation (SPD) have been developed in recent decades, making it possible to increase the strength of metals and their alloys by several times [1][2][3][4][5][6][7][8][9][10][11][12]. The main SPD methods are high pressure torsion [13], equal-channel angular pressing [1] and its modifications [14], all-round forging [15], "upset − extrusion -upset" ("hourglass") cycle dependent stress [16], screw extrusion [17] and others.…”