Serebryakova A.A., Zaguliaev D.V., Shlyarov V.V., Shliarova Yu.A., Ivanov Yu.F., Ustinov A.M. Study on Mechanical Characteristics and Fracture Surface Morphology of the Ti Surface-Modified AK5M2 Alloy

DOI: 10.18503/1995-2732-2023-21-1-32-44

Abstract

Problem Statement (Relevance). The modification of metals and alloys by the external energy deposition methods makes it possible to locally strengthen the surface layer of parts and assemblies made of aluminum alloys. Objective. This study is aimed at revealing the regularities of the effect of electron beam processing modes on the mechanical characteristics and fracture surface morphology of the Ti surface-modified AK5M2 alloy. Methods Applied. The authors used the methods of modern physical materials science. The surface of the AK5M2 alloy was modified with a Ti film by the vacuum arc method. The modified samples of the AK5M2 alloy were irradiated with an intense pulse electron beam in modes differing in the energy density of the electron beam (from 10 to 50 J/cm2). Mechanical tests were carried out by uniaxial tension to fracture of the alloy samples in the original state, the modified samples before and after the irradiation in 5 modes. Using scanning electron microscopy, the authors carried out a fractographic analysis of the fracture surface of the samples obtained as a result of tension. Originality. The development of a unique method for modifying the AK5M2 alloy makes it possible to improve its strength and morphological properties compared to the material in its original state. Results. As a result of the mechanical tests, the authors determined the values of yield strength, ultimate tensile strength, relative residual elongation and reduction at fracture. The dependence between the change in the deformation characteristics and the structure of the fracture surface on the electronbeam processing modes was established. Based on the tests performed on the samples of the Ti surface-modified AK5M2 alloy, the authors revealed a mode of electronbeam processing, leading to the formation of a surface structure characterized by higher mechanical properties. Practical Relevance. The Ti surface modification of the AK5M2 alloy after electronbeam processing in a mode using an electron beam energy density of 30 J/cm2 results in the increase in the strength characteristics. The parameters of this mode can be used for local hardening of parts made of this alloy, for example, bush bearings.

Keywords

modification of alloys, electron-beam processing, vacuum arc method, mechanical characteristics of AK5M2, fractography

For citation

Serebryakova A.A., Zaguliaev D.V., Shlyarov V.V., Shliarova Yu.A., Ivanov Yu.F., Ustinov A.M. Study on Mechanical Characteristics and Fracture Surface Morphology of the Ti Surface-Modified AK5M2 Alloy. Vestnik Magnito-gorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2023, vol. 21, no. 1, pp. 32-44. https://doi.org/10.18503/1995-2732-2023-21-1-32-44

Anna A. Serebryakova – postgraduate student of the Finkel Department of Natural Science, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0003-3979-7777

Dmitriy V. Zaguliaev – PhD (Eng.), Associate Professor of the Finkel Department of Natural Science, iberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-9859-8949

Vitaliy V. Shlyarov – postgraduate student of the Finkel Department of Natural Science, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-8130-648Х

Yulia A. Shliarova – postgraduate student of the Finkel Department of Natural Science, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-5677-1427

Yury F. Ivanov – DrSc (Physics and Mathematics), Professor, Chief Researcher of the Laboratory of Plasma Emission Electronics of the Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-8022-7958

Artem M. Ustinov – PhD (Eng.), Associate Professor of the Department of Metal and Wooden Structures, Tomsk State University of Architecture and Building, Tomsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-3461-2086

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