Forming ultrafine-grain structure in steel wire by continuous deformation

Chukin, M. V.; Корчунов, А. Г.; Polyakova, Marina; Emaleeva, D. G.

doi:10.3103/s0967091210060203

Cited by 18 publications

(6 citation statements)

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“…Among the first such technologies are the Conform and Linex processes, modifications of which are being created at the present time [13,14]. For the possibility of deformation of longlength samples, a number of ECAP-based combined processes have been developed, which also ensure the continuity of the process [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Panin,

Esbolat,

Arbuz

et al. 2024

Modelling and Simulation in Engineering

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In this paper, finite element simulation of asymmetric rolling in relief rolls of C11000 copper alloy in order to analyze the effectiveness of possible roll profiles and technological schemes of deformation was performed. The scientific innovation of this work lies in determining the patterns of development of stress-strain state parameters for various configurations of rolls, as well as determining the effectiveness of metal processing using various technological schemes. It was found that the use of trapezoidal relief makes it possible to increase the level of metal processing by almost 5 times compared with the use of radial relief. Comparison of technological schemes of deformation showed that deformation with 180° workpiece turning between passes significantly reduces the influence of the asymmetry factor. Deformation without changing the workpiece position between the passes has the opposite effect, and such a scheme significantly increases the influence of the asymmetry factor. Deformation with a transverse workpiece shift for the relief period between passes has the effect of a “golden mean.” The conducted laboratory experiment for lead billet showed that the shape change of lead billet during computer simulation has a high level of convergence with real conditions. At each stage of deformation, the difference in the geometric parameters of the workpiece between the model and the experiment did not exceed 3-5%. When deforming a copper billet, the maximum difference level was 8%, which is the result of the low rigidity of the rolling cage with smooth rolls.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Panin,

Esbolat,

Arbuz

et al. 2024

Modelling and Simulation in Engineering

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“…This process consists in repeatedly pulling the wire through special matrices, in the design of which two channels intersecting at an angle are provided. In [14], the influence of heat treatment and matrix design on the mechanical properties of the resulting samples is studied. It is also shown that to obtain a UFG structure, it is necessary to conduct from 4 to 10 processing cycles, which is the main drawback of this process.…”

Section: Introductionmentioning

confidence: 99%

Changes in the properties of Fe37-3FN steel during ECAP-drawing

Volokitin,

Naizabekov

2023

JCTM

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One of ways of high-quality processing of metal billets is drawing of a lengthy wire. But at modern technology of processing total reductions during the drawing of billet into a wire are rather big (up to 99.2 %) that demands carrying out additional intermediate heat treatments. Therefore, increase in strength and plastic properties of metal without intermediate heat treatment with saving of necessary final characteristics of a wire at improvement of already existing technologies is the perspective direction of development of metal working. In this paper, the deformation of a wire made of Fe37-3FN steel by ECAP-drawing is carried out. It is shown that as a result of large deformations, the grain structure of the metal reached the UFG level, and the wire itself was highly textured, both due to a very high level of deformations, and due to the lack of intermediate annealing, the latter is dictated by energy and resource saving. It was found that after deformation by the ECAP-drawing method, the wire has an increased reserve of plasticity in comparison with the traditional drawing process, which allows its further processing with high degrees of deformation without intermediate annealing.

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“…In this regard, severe plastic deformation (SPD) methods that implement a simple shear scheme under multicyclic processing conditions are being actively developed. Obtaining ultrafine grained structure in such metals allows an increase in strength and plastic properties of the respective metallic materials [ 31 , 32 , 33 , 34 , 35 ]. Based on the above, we can conclude that the search for new and productive schemes for the formation of ultrafine grained structure in metals and alloys on the basis of already available traditional PMT methods is the most important step for the further development of all processes related to severe plastic deformation.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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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.

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Forming ultrafine-grain structure in steel wire by continuous deformation

Cited by 18 publications

References 0 publications

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Investigation of the Efficiency of Roll Profiles and Technological Schemes of Deformation of Asymmetric Rolling in Relief Rolls of C11000 Copper Alloy by FEM Simulation

Changes in the properties of Fe37-3FN steel during ECAP-drawing

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

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