Volume 8, Issue 3, August 2018

Third regular issue in 2018

A microphotograph of a cross-section of SMFM-Pb with a porous bronze layer having a "columnar" structure: 1 - steel base, 2 - spike of the bronze layer, 3 – PTFE-composition.

Investigation of Tribological Properties of Sheet Metalfluoroplastic Materials

V. Kornopol'tsev, D. Mognonov, O. Ayurova, M. Dashitsyrenova, A. Subanakov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 235-239

Journal section: Experimental methods in materials research

A mesoscopic distinct element method enables large-scale modeling of carbon nanotube networks. Massively parallel dynamics engine allows studying self-assembly and mechanics of micrometer-size specimens.

Toward large scale modeling of carbon nanotube systems with the mesoscopic distinct element method

I. Ostanin, P. Zhilyaev, V. Petrov, T. Dumitrica, S. Eibl, U. Ruede, V. Kuzkin

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 240-245

Journal section: Theory and computer simulations in materials science and condensed matter physics

On the original laboratory bench, which allows to simulate the technological cooling rates of hot-rolled sheets in the process of controlled thermomechanical processing, the thermal effect of bainitic transformation in low-carbon low-alloy tube steel 06G2MB type is determined.

Thermal effect of bainitic transformation in tube steel by accelerated cooling

M.L. Lobanov, G.M. Rusakov, V.N. Urtsev, M.L. Krasnov, E.D. Mokshin, A.V. Shmakov, S.I. Platov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 246-251

Journal section: Experimental methods in materials research

The contact zone of the composite plates for the shell of the petrochemical reactor (coke drum) produced by explosive welding and made of steel 08Cr13 and steel 12CrMo has multilayered structure. The carbon segregation provokes the eutectoid decomposition that causes formation of colonies of rod-shaped carbides. As a result, there are two risk zones: the melted zone (2) and the segregation zone (3).

Microstructures which prevent adhesion of materials upon explosion welding

B.A. Greenberg, M.A. Ivanov, S.V. Kuzmin, V.I. Lysak, Y.P. Besshaposhnikov, M.S. Pushkin, A.V. Inozemtsev, A.M. Patselov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 252-257

Journal section: Structure design and analysis

At cooling from T~ 400 K a La0.82Ca0.18MnO3 single crystal undergoes the transition from pseudocubic O* phase to Jahn-Teller O' phase and the reverse transition from the O' to low temperature O* phase. It is surprising that low values of the internal friction are observed for crystal phase O' with significant Jahn-Teller distortions of oxygen octahedra.

Structural Transitions in a La0.82Ca0.18MnO3 Single Crystal

R.I. Zainullina, N.S. Bannikova, D.A. Shulyatev

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 258-262

Journal section: Mechanical and physical properties of materials

The influence of titanium on the changes in the structure of the cascade development region can contribute to the reduction of the radiation swelling of vanadium through the formation of vacancy clusters of smaller dimensions.

Effect of titanium on the primary radiation damage and swelling of vanadium-titanium alloys

A.O. Boev, K.P. Zolnikov, I.V. Nelasov, A.G. Lipnitskii

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 263-267

Journal section: Theory and computer simulations in materials science and condensed matter physics

Metalloceramic NiCrBSiFe‒WC coating on structural steel 40Kh was prepared by the method of laser cladding process. The cladding was performed making use of the multichannel continuous СО2 laser radiation.

Laser cladding of NiCrBSiFe‒WC coating with multichannel laser

L.E. Afanasieva, G.V. Ratkevich

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 268-273

Journal section: Structure design and analysis

On the presented time dependences of pressure change and electrical resistance of the sample during the ETE of the reaction mixture W-Ni-Al, it is evident that the preheating time was 2.6 seconds, and the duration of the thermal explosion stage was 0.5 seconds.

SYNTHESIS OF COMPOSITE BASED W-Ni-AL SYSTEM BY THE ELECTRO-THERMAL EXPLOSION UNDER PRESSURE

A.S. Shchukin, A.V. Scherbakov, A.E. Sytschev, V.A. Shcherbakov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 274-277

Journal section: Structure design and analysis

Softening of the flexural surface acoustic wave leads to spatially periodic static bending deformation (modulation) of the embedded nanolayer with the definite wave number.

Bending instability of few-layer graphene embedded in strained polymer matrix

Y. Kosevich, A Kistanov, I. Strelnikov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 278-281

Journal section: Mechanical and physical properties of materials

The results of an investigation of the EPR and the magnetic susceptibility of BiNb1-xFexO4-δ orthorhombic modification

EPR AND MAGNETIC PROPERTIES OF α-BiNb1-xFexO4-δ

N.A. Zhuk, L.S. Feltsinger, N.V. Chezhina, V.P. Lutoev, B.A. Makeev, V.A. Belyy

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 282-287

Journal section: Experimental methods in materials research

Variability of Poisson's ratios for dentin and enamel.

Elastic anysotropy of dentin and enamel

S.A. Muslov, D.S. Lisovenko

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 288-293

Journal section: Mechanical and physical properties of materials

Whisker structures formed on the surface of the defective crystals layers

Nanowisker structures of copper oxide under conditions of exposure to temperature fields and corrosive media

N.N. Gryzunova, A.A. Vikarchuk, V.V. Bekin, V.S. Firsov, A.M. Gryzunov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 294-298

Journal section: Mechanical and physical properties of materials

When a domain wall moves through a magnetic defect region (marked with dashed lines), a localized nonlinear wave (magnetic breather) is excited.

Localized Magnetic Inhomogeneities Generation on Defects, as a New Channel of Damping for a Moving Domain Wall

A.M. Gumerov, E.G. Ekomasov, R.V. Kudryavtsev, M.I. Fakhretdinov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 299-304

Journal section: Theory and computer simulations in materials science and condensed matter physics

Microstructure of iron deformed by multi-axial forging and corresponding distribution of misorientations across deformation-induced boundaries.

Misorientation distribution of high-angle boundaries formed by grain fragmentation: EBSD-based characterization and analysis performed on the heavily deformed iron

N. Zolotorevsky, V. Rybin, A. Matvienko, E. Ushanova, S. Sergeev

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 305-310

Journal section: Structure design and analysis

The main mechanisms of plastic deformation under high-speed compression and tension of CoCrFeMnNi single crystals are the formation of stacking faults and bands with a hcp lattice, the subsequent twinning occurs only upon stretching. Deviation from the equiatomic composition significantly improves the physical and mechanical properties of this alloy.

Onset of plastic deformation in non-equiatomic fcc CoCrFeMnNi high-entropy alloys under high-speed loading

A.V. Korchuganov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 311-316

Journal section: Theory and computer simulations in materials science and condensed matter physics

During the cyclic deformation the energy dissipation zone covers a significant amount of the titanium sample and the zirconium alloy one in the ultrafine-grained state. For the coarse-grained and fine-grained states the growth of thermal energy has a localized character in the active zone of the samples. Cyclic loading of the titanium sample and the zirconium alloy in the ultrafine-grained state is accompanied by a qualitative change in the energy absorption dissipation process.

Failure mechanisms of titanium VT1-0 and zirconium alloy E110 in ultrafine-grained, fine-grained and coarse-grained states under cyclic loading in gigacycle regime

O.B. Naimark, Y.P. Sharkeev, A.M. Mairambekova, M.V. Bannikov, A.Y. Eroshenko, A.I. Vedernikova

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 317-322

Journal section: Mechanical and physical properties of materials

The research of dispersed precipitates in high-strength medium-carbon steel after tempering in the temperature range up to 600 °C was carried out. Amount of retained austenite decreases and cementite is forming instead of austenite by growth of the tempering temperature.

Multimethodological approach to the study of carbide particle dimensions in high-strength steel

M.L. Fedoseev, S.N. Petrov, A.K. Islamov, N.F. Drozdova, T.A. Lychagina, D.I. Nikolaev

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 323-328

Journal section: Experimental methods in materials research

The technological properties of the titanium alloy VT6 were studied. It is established that it can be successfully used in SPF/DB technology under conditions of low-temperature superplasticity at temperatures of 750-800° C. The model of the hollow blade of a three-layer structure was made from this alloy.

The study of technological properties of the titanium alloy Ti-6Al-4V. Part 2

R.V. Safiullin, M.H. Muhametrahimov, S.P. Malycheva, A.R. Safiullin, A.N. Kozlov, AV Berestov, S.A. Harin, M. Morozov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 329-334

Journal section: Materials processing and applications

The method of consolidation of metal powder is proposed, this method consists in applying a layer of metal powder on the surface of the detail, compressing the powder at a point between the workpiece and the electrode, and sintering at this point by electric pulse. Sequential dot by dot sintering leads to the formation of a new layer and allows to obtain bulk materials.

The features of metal powders consolidation by layer-by-layer electric discharge sintering

I.A. Elkin, V.A. Volkov, K.S. Stolbov, D.A. Kolodkin, A.A. Chulkina, A.N. Bel'tyukov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 335-340

Journal section: Materials processing and applications

Using different cold-rolled and annealing regimes different primary recrystallization texture in Fe-14%Ga was obtained. Values of magnetostriction decreased in conformity with the decrease of texture components containing easy magnetization directions.

TEXTURE FORMATION UNDER ROLLING AND PRIMARY RECRYSTALLIZATION IN Fe86Ga14 ALLOY

V.A. Milyutin, I.V. Gervasyeva

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 341-345

Journal section: Structure design and analysis

The function of the force parameters (axial force and torque) recorded in the experiment and the preset kinematic parameters (the rate of tension and the torsional velocity), the strain rate sensitivity coefficient and the approach angle between the stress vectors and the strain rate on the specimen surface under complex loading.

On tension-torsion testing of solid cylindrical specimens

R.M. Kashaev

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 346-352

Journal section: Experimental methods in materials research

In the three-layer composite PZT / FeRh / PZT, the possibility of control the temperature of the magnetic transition and width of the hysteresis by electric field was demonstrated.

Electric field controlled magnetic phase transition in Fe49Rh51 based magnetoelectric composites

A.A. Amirov, A.S. Starkov, I.A. Starkov, A.P. Kamantsev, V.V. Rodionov

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 353-357

Journal section: Experimental methods in materials research

Neutronographic research (T=300 K) having been carried out on highly doped Zn0.9Ni0.1S, Zn0.95Fe0.05Se, Zn0.99V0.01Se cubic crystals of diluted magnetic semiconductors shows that unhomogeneously distorted nano volumes, of ellipsoidal forms emerged at small dopant content in initial lattice, oriented to crystallographic directions which depending on Jahn-Teller ions type, are transformed to two-types form, leading to loss of initial orientations having been ascribed by supplied describing statistics of investigated phenomena. The figure illustrates observed changes direct scheme build on processed data of diffuse contribution partitioning to scattering on Zn1-хVхSe crystals, when the longest axes of nano regions at small dopant content (х~0.001) lie previously along <111> directions (the small cell of the cube containing the unhomogeneity corresponds to the elementary cell of the ZnSe structure), the case of high level doping are assumed to be considered as damage degrees of crystallographic planes of initial lattice.

On non-uniform strains in the structure of diluted magnetic semiconductors based on Jahn-Teller 3d- ions

E.N. Maksimova, V.I. Maksimov, T.P. Surkova

PDF Article

Year: 2018

Volume: 8 Issue: 3

Pages: 358-363

Journal section: Structure design and analysis

Grain boundary wetting by the melt in the Cu-10 wt.% Ag alloy

Grain boundary phase transformations in Al and Cu-based alloys

B.B. Straumal, O.A. Kogtenkova, A.B. Straumal, B. Baretzky

PDF Review

Year: 2018

Volume: 8 Issue: 3

Pages: 364-371

Journal section: Structure design and analysis

Extrinsic grain boundary dislocations (EGBDs) are formed in grain boundaries during plastic deformation of polycrystals
EGBDs cause a nonequilibrium structure of grain boundaries, long-range stress fields and enhanced energy
Nonequilibrium grain boundaries are typical for bulk nanomaterials processed by plastic deformation mnethods

Review: Nonequilibrium grain boundaries in bulk nanostructured metals and their recovery under the influences of heating and cyclic deformation

A.A. Nazarov

PDF Review

Year: 2018

Volume: 8 Issue: 3

Pages: 372-381

Journal section: Theory and computer simulations in materials science and condensed matter physics

Volume 8, Issue 3, August 2018

Investigation of Tribological Properties of Sheet Metalfluoroplastic Materials

Toward large scale modeling of carbon nanotube systems with the mesoscopic distinct element method

Thermal effect of bainitic transformation in tube steel by accelerated cooling

Microstructures which prevent adhesion of materials upon explosion welding

Structural Transitions in a La0.82Ca0.18MnO3 Single Crystal

Effect of titanium on the primary radiation damage and swelling of vanadium-titanium alloys

Laser cladding of NiCrBSiFe‒WC coating with multichannel laser

SYNTHESIS OF COMPOSITE BASED W-Ni-AL SYSTEM BY THE ELECTRO-THERMAL EXPLOSION UNDER PRESSURE

Bending instability of few-layer graphene embedded in strained polymer matrix

EPR AND MAGNETIC PROPERTIES OF α-BiNb1-xFexO4-δ

Elastic anysotropy of dentin and enamel

Nanowisker structures of copper oxide under conditions of exposure to temperature fields and corrosive media

Localized Magnetic Inhomogeneities Generation on Defects, as a New Channel of Damping for a Moving Domain Wall

Misorientation distribution of high-angle boundaries formed by grain fragmentation: EBSD-based characterization and analysis performed on the heavily deformed iron

Onset of plastic deformation in non-equiatomic fcc CoCrFeMnNi high-entropy alloys under high-speed loading

Failure mechanisms of titanium VT1-0 and zirconium alloy E110 in ultrafine-grained, fine-grained and coarse-grained states under cyclic loading in gigacycle regime

Multimethodological approach to the study of carbide particle dimensions in high-strength steel

The study of technological properties of the titanium alloy Ti-6Al-4V. Part 2

The features of metal powders consolidation by layer-by-layer electric discharge sintering

TEXTURE FORMATION UNDER ROLLING AND PRIMARY RECRYSTALLIZATION IN Fe86Ga14 ALLOY

On tension-torsion testing of solid cylindrical specimens

Electric field controlled magnetic phase transition in Fe49Rh51 based magnetoelectric composites

On non-uniform strains in the structure of diluted magnetic semiconductors based on Jahn-Teller 3d- ions

Grain boundary phase transformations in Al and Cu-based alloys

Review: Nonequilibrium grain boundaries in bulk nanostructured metals and their recovery under the influences of heating and cyclic deformation

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