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Регулярный выпуск 15 (3) 2025

Microhardness distribution in the stir zone after multi-pass FSP along line passing through the center of the stir zone perpendicular to the sample surface.

Effect of multi-pass friction stir processing on the microstructure and microhardness of AA6063 / NiO composite

Microhardness distribution in the stir zone after multi-pass FSP along line passing through the center of the stir zone perpendicular to the sample surface.
I.S. Sugonyako, B.M. Khasanov, D.B. Kabirova, N.F. Khayretdinov, M.F. Imayev
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Год: 2025 Том: 15     Выпуск: 3 Стр.: 163-168

With an increase in the addition of boron carbide to the non-localized electrode from 6 to 9 vol.%, the concentration of theTiB2 phase in electrospark deposited coatings on the Ti–6Al–4V titanium alloy increases dramatically, which leads to a multiple reduction in their wear rate. This is explained by the fact that in this range of B4C concentration, supersaturation of the αTi solid solution with boron occurs.

Electrospark deposition of boron carbide powder on titanium alloy Ti-6Al-4V

With an increase in the addition of boron carbide to the non-localized electrode from 6 to 9 vol.%, the concentration of theTiB2 phase in electrospark deposited coatings on the Ti–6Al–4V titanium alloy increases dramatically, which leads to a multiple reduction in their wear rate. This is explained by the fact that in this range of B4C concentration, supersaturation of the αTi solid solution with boron occurs.
A.A. Burkov, M.A. Kulik, A.Y. Bytsura, V.O. Krutikova
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Год: 2025 Том: 15     Выпуск: 3 Стр.: 169-175



The compressive deformation of nickel nanoparticles with amorphous and nanocrystalline structures was investigated using molecular dynamics simulations.

Simulation of the compression of nanocrystalline and amorphous nickel nanoparticles

The compressive deformation of nickel nanoparticles with amorphous and nanocrystalline structures was investigated using molecular dynamics simulations.
G.M. Poletaev, R.Y. Rakitin
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Obtaining bimetallic bronze-steel cylinders by wire-feed electron beam additive manufacturing.

Effect of the order of component deposition on the structure of the transition zone of bimetallic structures produced using high-performance electron beam additive manufacturing

Obtaining bimetallic bronze-steel cylinders by wire-feed electron beam additive manufacturing.
A.V. Chumaevskii, A.V. Nikolaeva, V.M. Semenchuk, K.S. Osipovich, D.A. Gurianov, E.A. Kolubaev
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Год: 2025 Том: 15     Выпуск: 3 Стр.: 199-206

Molecular dynamics simulations demonstrate that silicene experiences a smooth decline in mechanical properties accompanied by the formation of inhomogeneous wrinklons as defect size increases, while graphene undergoes a sharp drop in strength at a critical defect size and exhibits uniform ripples.  These distinct deformation stages and wrinkle morphologies are directly linked to the atomic structures of silicene and graphene, influencing their mechanical responses under tension.

Deformation behaviour of silicene with dislocation dipoles under uniaxial tension

Molecular dynamics simulations demonstrate that silicene experiences a smooth decline in mechanical properties accompanied by the formation of inhomogeneous wrinklons as defect size increases, while graphene undergoes a sharp drop in strength at a critical defect size and exhibits uniform ripples. These distinct deformation stages and wrinkle morphologies are directly linked to the atomic structures of silicene and graphene, influencing their mechanical responses under tension.
A.K. Akhunova, R.T. Murzaev
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The concentration area of the Fe-Co-Cr system, with the summarized crystallization processes of the amorphous matrix phase (Am), is shown by empty and solid symbols for alloys from previous and present studies, respectively. The red area marked with a solid line and arrow depicts a potential vector for selecting the composition of Fe-Co-Cr-B alloys to achieve a higher coercive state as a result of crystalization heat treatment of amorphous matrix phase.

Structure and magnetic properties of amorphous alloys of the Fe-Co-Cr-B system with varying Fe / Co ratios

The concentration area of the Fe-Co-Cr system, with the summarized crystallization processes of the amorphous matrix phase (Am), is shown by empty and solid symbols for alloys from previous and present studies, respectively. The red area marked with a solid line and arrow depicts a potential vector for selecting the composition of Fe-Co-Cr-B alloys to achieve a higher coercive state as a result of crystalization heat treatment of amorphous matrix phase.
E.N. Zanaeva, A.I. Bazlov, A.A. Kazakova
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Год: 2025 Том: 15     Выпуск: 3 Стр.: 220-226