Hardening of Bimetallic Wires from Secondary Materials Used in the Construction of Power Lines

Abstract

Copper-sheathed steel wires combine the conductivity of copper and the traction resistance of steel, which makes a bimetallic wire an ideal material for the construction of power lines. Currently, there is a small number of studies devoted to the change in the microstructure of steel-copper wire during its strain. Since steel and copper have different mechanical properties, these metals at the interface can be deformed in different ways. Therefore, the present research is devoted to the study of ECAP-drawing process impacts on the properties of bimetallic steel-copper wire. During the conducted studies, the possibility and efficiency of using the combined strain technology for the formation of ultrafine grained structure and increased strength properties of steel-copper wire have been proved.

Development of a Thermomechanical Treatment Mode for Stainless-Steel Rings

“…In terms of manufacturing process development, this means a tendency to reduce the number of different production steps while using materials as efficiently as possible [ 11 , 12 , 13 , 14 , 15 ]. In terms of material performance, against an increasingly important, lightweight design, high strength with good ductility is of great importance [ 16 , 17 ]. Most manufacturing processes for processing metallic materials cause local or global changes in material properties.…”

Progress in Additive Manufacturing

“…The creation of a mathematical model linking the profile of a single roller with the parameters of surfacing is one of the key tasks of developing additive shaping technology. It is also important that the roller model connects not only the process parameters and the geometry of the roller but also allows you to choose the parameters of the surfacing mode taking into account the evolution of the microstructure and mechanical properties of the final products [1][2][3][4][5][6][7][8][9][10][11][12][13][14][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Mechanisms of Structure Formation under Severe Plastic Deformation: A Review

“…The development of methods of severe plastic deformation (SPD) in recent years has expanded the process of evolution of metal systems up to the formation of nanostructured state. Many review papers [1-3], experimental [4][5][6][7][8][9][10][11][12][13][14][15] and theoretical papers [16][17][18] have appeared in this direction, including those using computer modelling, the authors of which, systematizing the results obtained, complementing and enriching each other, create a general picture of severe deformation of solids. Nevertheless, it should be recognized that today there is still no general physical model of matter evolution under plastic deformation.…”