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Analysis of Temperature-Deformation Conditions for Rolling Aluminum Alloy Al–Mg–Sc Based on FEM Modeling

  • PRESSURE TREATMENT OF METALS
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Abstract

The article discusses the features of radial shear rolling (RSR) of the aluminum alloy Al–Mg–Sc. The modeling of the RSR process by the finite element method in the QForm 3D program with variation of the elongation ratio per pass and the rolling speed has been implemented. On the basis of the results obtained, a study of the temperature field of the rod in the deformation zone has been carried out taking into account the cyclic deformation and the configuration of the flow trajectories. It is found that changes in the temperature field of the rod in the deformation zone are determined by the difference in the trajectory flow of the metal in the surface layers and in the axial zone. When the elongation ratio is varied from 1.6 to 2.4, heating occurs inconsistently from the center to the surface. The largest increase occurs for an area that is approximately 0.3R from the surface. For the axial zone, the temperature change in the deformation zone occurs smoothly and with an insignificant temperature difference of 5–10°C. The temperature on the surface of the rod has the greatest temperature fluctuations, which are explained by deformation heating and simultaneous contact with a cold roll during each deformation cycle. With a decrease in the rolling speed, a picture of the distribution of the temperature field of the rod in the deformation zone is observed, when the temperature of the central layers exceeds the surface temperature. Because of the long contact time of the rod with the roll, the surface temperature fluctuates up to 40–50°C with each deformation cycle. With an increase in the rolling speed, the amplitude of temperature fluctuations on the surface decreases, and the deformation heating increases. The obtained data on the relationship of controlled technological parameters with a change in the temperature field of the rod can be useful in the design of technological modes of rolling.

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Funding

This study was supported by a grant from the Russian Science Foundation (project no. 21-79-00144).

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Authors and Affiliations

  1. National University of Science and Technology MISiS, Moscow, Russia

    Yu. V. Gamin, S. P. Galkin, X. D. Nguyen & T. K. Akopyan

  2. Baikov Institute of Metallurgy and Materials Science, Moscow, Russia

    T. K. Akopyan

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  1. Yu. V. Gamin
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  2. S. P. Galkin
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Correspondence to Yu. V. Gamin, S. P. Galkin, X. D. Nguyen or T. K. Akopyan.

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Translated by Sh. Galyaltdinov

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Gamin, Y.V., Galkin, S.P., Nguyen, X.D. et al. Analysis of Temperature-Deformation Conditions for Rolling Aluminum Alloy Al–Mg–Sc Based on FEM Modeling. Russ. J. Non-ferrous Metals 63, 417–425 (2022). https://doi.org/10.3103/S1067821222040071

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