Принятые к публикации статьи
Structure evolution in ultrafine-grained nickel induced by ultrasonic welding
Disk-shaped nickel plates processed by high pressure torsion were successfully joined by ultrasonic welding. Welding resulted in the grain growth which is uneven along the cross-sectional height of the welded specimen. The specimens showed a gradient microstructure with a grain size ranging from 3 μm in the lower plate to 6 μm in the upper one, along with a developed substructure, after the process of USW.
E.R. Shayakhmetova, M.A. Murzinova, A.A. Mukhametgalina, A.A. Nazarov
Статья
Dynamics of Zn segregation in the symmetric tilt boundary ∑5(210)[001] of AlZn alloys under shear loading
Grain boundary sliding caused the grain boundary region to thicken and the grain boundary structure was disordered. This resulted in the increased mobility of Zn atoms in this region and the formation of a segregation layer in the center of the grain boundary.
S.Y. Korostelev, D.S. Kryzhevich, K.P. Zolnikov
Статья
Growth of hardening nitride phase particles in a Ni-Co-Cr-Ti alloy during annealing
Figure shows experimental data on particle growth during isothermal annealing at 1300 °C as a time dependence of the average particle volume. For particles located at different distances from the sample surface, these dependences are approximated by straight lines with close angular coefficients (curves 1 and 2).
Y.R. Kolobov, B.S. Bokshtein, M.G. Tokmachev, A.O. Rodin, S.S. Manokhin, A.Y. Tokmacheva-Kolobova, S.V. Ovsepyan
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The features of the microemulsion structure changes under the nonhomogeneous alternating electric field impact
There is an increase in coalescence efficiency with increasing droplet concentration. This is due to the fact that an increase in the concentration of drops leads to a decrease in the distribution of the distance between the drops of the emulsion, which favorably affects the process of convergence of the drops.
A.I. Mullayanov , A.A. Musin, V.I. Valiullina, L.A. Kovaleva
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The effect of annealing on microstructure and microhardness of low-activation high-manganese austenitic steel
The annealing at 700 °C for 50 h leads to noticeable changes of the carbide subsystem of low-activation high manganese austenitic steel. After solution treatment (ST) it causes precipitation of M23C6 particles along the grain boundaries and on the MC particles. Annealing of the cold-rolled (CR) samples leads to the formation of these particles at the microtwin boundaries.
N.A. Polekhina, I.Yu. Litovchenko, S.A. Akkuzin, K.V. Spiridonova, A.V. Kim, V.V. Osipova, V.M. Chernov
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Chemically controlled radiation resistance of single-phase fcc Ni-Fe-Cr concentrated solid solutions
Chemically controlled size distribution of point defect clusters generated by single displacement cascades determines amount and sizes of radiation defects under prolonged irradiation of materials
A.V. Korchuganov, O.A. Berezikov
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Phase-field modeling of changes in the grain structure of 316L steel obtained by cold spraying followed by laser treatment
The effect of laser thermal action on metal grains in 316L alloy obtained by supersonic laser deposition have been investigated. The treat by laser provide growth metal grains by diffusion. The results of experimental studies correlate with the results of process modeling.
M.S. Orlova, A.I. Gorunov
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Dependence of α-phase particle morphology in aged metastable β Ti-15Mo alloy on the shear deformation degree
This work shows the influence of the degree of severe deformation on the morphological features of α-phase particles in aged metastable β-titanium alloy Ti-15Mo.
V.V. Polyakova, S.A. Gatina, A.G. Stotskiy, A.V. Polyakov, I.P. Semenova
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Electrical conductivity and protective properties of adsorption organic films on the surface of rolling steel
Dependence of the film active resistance on the uniaxial pressure Р. СSAS·HBr=3·10-3 mol/l in the mixed SAS·HBr+KBr inhibitor. The adsorption time is 3 days. f=1 kHz.
S.P. Shpanko, E.N. Sidorenko, A.O. Galatova, A.V. Nazarenko, A.G. Rudskaya
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Simulation of ultrasonic welding of copper: effect of the amplitude of vibrations
The initial structure used for atomistic simulations of USW of copper. Surface layers with constraints are shown in blue color, thermostats in yellow, and layers with free atoms in turquoise blue.
R.T. Murzaev, M.A. Idrisova, A.A. Nazarov
Статья
Structure, properties and phase transformations in feedstock Ti2AlNb powder used for additive manufacturing
The powder morphology, phase composition and microstructure were thoroughly investigated. The temperature ranges of phase transformations in the powder during heating and cooling have been established
A.G. Illarionov, S.L. Demakov, M.S. Karabanalov, M.A. Shabanov, A.A. Popov, E.O. Smirnova, S.I. Stepanov
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Composites based on mechanosynthesized G-phases Ti6Co16Si7 and Ti6Ni16Si7: phase composition and properties
Mechanical alloying of elemental powders and subsequent thermal treatment were applied to synthesize Ti6Co16Si7- and Ti6Ni16Si7- based composites.
M.A. Eryomina, S.F. Lomayeva, S.N. Paranin, S.V. Zayats
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Design and mechanical performance of additively manufactured porous structures to develop bioactive titanium scaffolds
Ti-based metallic porous structures with adjustable mechanical performance developed by computer-assisted design and produced by laser powder bed fusion to engineer advanced bioactive implants for orthopedic applications.
N.A. Enikeev, M.M. Abramova, A.V. Kapustin, V.V. Polyakova, A.A. Ryzhkin, E.S. Kudryashova, N.Yu. Anisimova, M.V. Kiselevskiy
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Numerical study of the deformation behavior of a 2D chiral metamaterial
Artificially created materials - metamaterials, with a specially selected structure during the deformation process correspond to the behavior of structures. Metamaterials have unusual properties: additional degrees of freedom, negative Poisson's ratio.
L.R. Akhmetshin, K.V. Iokhim, E.A. Kazantseva, I.Y. Smolin
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Solid-state joining conditions of thin-walled ferritic-martensitic steel tubes to end plugs made by magnetic pulse welding
Joining of thin-walled tubes with plugs of ferritic-martensitic steels was carried out by magnetic pulse welding. The presence of molten layer on the joint interface depended on the materials and the impact conditions.
V.I. Krutikov, A.V. Spirin, E.Y. Zaytsev, S.V. Petrova, S.N. Paranin
Статья
Microstructure, mechanical and functional properties of the Ti49.0Ni51.0 alloy with preliminary multiple martensitic transformations
Change in microhardness depending on the initial microstructure and processing (thermal cycling and annealings)
A.A. Churakova, E.I. Iskhakova, E.V. Vorobiev
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