Current issue

Assembling of pseudo-graphene from grain boundaries with structural units 5-7.

Disclinations in polycrystalline graphene and pseudo-graphenes. Review

A.E. Romanov, M.A. Rozhkov, A.L. Kolesnikova

PDF Review

Year: 2018

Volume: 8 Issue: 4

Pages: 384-400

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

The change in the thermokinetic EMF value as a result of the passage of the cooling zone through a deformed section 0.18 cm in the TiNi alloy

CALCULATION OF THE INFLUENCE OF PLASTIC DEFORMATION ON THE VALUE OF THERMOKINETIC EMF IN TiNi ALLOY

A. Lesota, V. Rubanik, V.jr. Rubanik

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 401-405

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

Dependence of an elastic modulus of composition on the basis of secondary polypropelene filled 10 mass part wood flour from content of coupling agent EN13F1F3HH (1), MPP5X (2) and SANUMBUGO F1 (3) in composition.

Ways of improvement of physicomechanical properties of polymeric composites on the basis of secondary polypropylene and natural excipients

A. Sadritdinov, R. Lazdin, E. Zakharova, A. Shurshina, V. Zakharov, E. Kulish

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 406-409

Journal section: Mechanical and physical properties of materials

The combined treatment DCAP + aging 400°С + SPD by friction of the Cu–0.09Cr–0.08Zr SMC alloy gives rise to the friction-induced nanocrystalline structure with grains 15– 60 nm in size in the surface-layer material, which provides a high level of the microhardness and satisfactory tribological properties.

The formation of friction-induced nanocrystalline structure in submicrocrystalline Cu-Cr-Zr alloy рrocessed by DCAP

I.V. Khomskaya, A.E. Kheifets, V.I. Zel'dovich, L.G. Korshunov, N.Y. Frolova, D.N. Abdullina

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 410-414

Journal section: Structure design and analysis

The slip is activated in the systems parallel to the direction of the indenter and thereto at an angle of 45°.
Three stages are identified on the F-N curve and the correlation of the stages with the beginning of the shear traces formation is shown.

Octahedral slip in nickel single crystals induced by scratch testing

E. Alfyorova, D.V. Lychagin, A.V. Filippov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 415-418

Journal section: Mechanical and physical properties of materials

The frequency dependence of intrinsic permeability of Fe75Si25 particles was shown to depend strongly on the milling conditions

Structural characterization and microwave properties of Fe75Si25 alloys produced by wet ball milling

K. Yazovskikh, S.F. Lomayeva, A.A. Shakov, G.N. Konygin, O.M. Nemtsova, A.O. Shiryaev, D.A. Petrov, K.N. Rozanov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 419-423

Journal section: Structure design and analysis

The stages of the evolution of the structure of copper of commercial purity (99.9 wt% Cu) under cryogenic deformation by shear under pressure were studied. Mechanical twinning prevents the formation of a misoriented disperse structure and the development of recrystallization upon heating up to room temperature.

Formation and Stability of Ultrafine Structure of Commercial Purity Copper Deformed at 80 K

L. Voronova, M. Degtyarev, T. Chashchukhina, T. Gapontseva, V. Pilyugin

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 424-428

Journal section: Structure design and analysis

The red squares correspond to the excited cells that generate the main component of the twin structure, marked in orange.
The transition to an ideal degenerate twin structure with contacting main components is shown.

The formation of martensite crystals with a degenerate structure of transformation twins

M.P. Kashchenko, N.M. Kashchenko, V.G. Chashchina

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 429-434

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

$Dependences between dislocation substructures parameters in Cu+0.4аt.%Mn alloy and fracture point Х: 1 – density of broken sub-boundaries Мbs; 2 – density of microbands Nmb, 3 – density of microcracks Рcr$

Gradient dislocation substructures at fracture of polycrystalline Cu-Mn alloys

N.A. Koneva, L.I. Trishkina, T.V. Cherkasova

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 435-439

Journal section: Structure design and analysis

Dependence of a Neel temperature TN for bulk phase transition on the exchange integrals relation RS at RSB=RS for films with various thickness D.

The study of critical behavior on antiferromagnetic thin films by computer modeling

S.V. Belim, E.V. Trushnikova

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 440-442

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

Mechanical alloying of titanium and niobium powders occurs under conditions of severe plastic deformation and leads to the formation of the alloy with nanosized structure. Upper limit of produced structure thermal stability is limited to 500°C.

Thermal stability of Ti-45Nb mechanically alloyed powder

Z.G. Kovalevskaya, Y.P. Sharkeev, M.A. Khimich, I.A. Glukhov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 443-447

Journal section: Structure design and analysis

Reconstruction of prior austenite grain boundaries and its verification by the thermal etching in vacuum

Extraction of prior grain boundaries from interfaces of martensite based on particular statistics for inter-variant disorientations

A.A. Zisman, D.R. Kolomoets, N.Y. Zolotorevsky, S.N. Petrov

PDF Review

Year: 2018

Volume: 8 Issue: 4

Pages: 448-453

Journal section: Structure design and analysis

Longer silaprismanes are more stable, and their HOMO-LUMO gaps are close to zero.

Energy and electronic characteristics of silicon polyprismanes: Density functional theory study

M.A. Gimaldinova, K.P. Katin, M.A. Salem, M.M. Maslov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 454-457

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

Discrete breather in the strained Lennard-Jones chain

Discrete breathers of new type in monoatomic chains

G. Chechin, V. Lapina

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 458-462

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

Silicene is a very promising material for the future microelectronics. The article is devoted to the molecular-dynamic investigation of the behavior of a two-layer silicene located on a silver substrate and interacting with a lithium ion.

Physical Aspects of the Lithium Ion Interaction with the Imperfect Silicene Located on the Silver Substrate

A. Galashev, O. Rachmanova, K. Ivanichkina, Y. Zaikov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 463-467

Journal section: Structure design and analysis

Hatching distance effects on microstructure of additively manufactured specimens. Increased hatching distance speed up the manufacturing process, but the porosity level also increases. Reduced hatching distance results in overheating and bubbling of the printed material.
The small distance between parts during manufacturing can compensate the increased hatching distance.

Effect of the hatching strategies on mechanical properties and microstructure of SEBM manufactured Ti-6Al-4V specimens

Popov Jr. Vladimir V., A. Katz-Demyanetz, A. Kovalevsky, R. Biletskiy, E. Strokin, A. Garkun, M. Bamberger

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 468-472

Journal section: Materials processing and applications

It was found that severe plastic deformation (SPD) by the ECAP method leads to the dispersion of intermetallic particles and the weakening of the adhesive bond of the particles with the matrix. In the case of coarse particles, their milling causes a decrease in wear. In the case of fine particles, the weakening of adhesion to the matrix causes an increase in wear.

Destruction and Wear of Babbit Sn11Sb5.5Cu after Equal-Channel Angular Pressing

A.K. Valeeva, A.K. Akhunova, I.S. Valeev

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 473-477

Journal section: Mechanical and physical properties of materials

The best balance of mechanical properties was obtained for the VT25U/TiB composite.

Microstructure and mechanical properties of α+β titanium alloy based composites fabricated in situ by casting and subjected to hot forging

V.M. Imayev, R. Gaisin, A. Ganeev, R.M. Imayev

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 478-484

Journal section: Mechanical and physical properties of materials

Adding natural fillers of plant origin to composites based on recycled polypropylene gradually increases the thermal conductivity coefficient with increasing filler content.

Study of thermal properties of biodegradable composite materials based on recycled polypropylene

R. Salikhov, M. Bazunova, A. Bazunova, T. Salikhov, V. Zakharov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 485-488

Journal section: Mechanical and physical properties of materials

Approximate analytical solution of the DNA helicoidal model with the damping and constant external force in the radial direction.

Nonlinear dynamics of DNA with topological constraints

A.S. Nikitiuk, E.A. Korznikova, S.V. Dmitriev, O.B. Naimark

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 489-493

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

BSE images of the superalloy SLZhS-1R subjected hot upsetting at Ts – 10K and heat treatment.

Effect of heat treatment and hot working on microstructure and mechanical properties of a novel nickel base superalloy

R. Shakhov, A. Ganeev, S. Mukhtarov, A. Logunov

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 494-498

Journal section: Mechanical and physical properties of materials

Centrifugal SHS-metallurgy of nitrogen steels

V.I. Yukhvid, D.M. Ikornikov, D.E. Andreev, V.N. Sanin, M.I. Alymov, N.V. Sachkova, V.N. Semenova, I.D. Kovalev

PDF Article

Year: 2018

Volume: 8 Issue: 4

Pages: 499-503

Journal section: Structure design and analysis

The IPSM building in Ufa used for research on all aspects of superplastic flow and superplastic forming

Developments in superplasticity over the last three decades with emphasis on research in Ufa

T.G. Langdon

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 506-509

Journal section: Structure design and analysis

Fundamental and applied researches in the field of superplasticity and related phenomena have always been extensively carried out at the Institute for Metals Superplasticity Problems of the Russian Academy of Sciences (IMSP RAS)

Current achievements on superplasticity and related phenomena at the Institute for Metals Superplasticity Problems

R.R. Mulyukov, A.A. Nazarov, R.M. Imayev

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 510-516

Journal section: Materials processing and applications

Miniaturised samples from AX52 magnesium alloy were tested in tension in a wide strain rates region. Parameters of the thermally activated mechanisms were estimated and discussed.

Influence of strain rate on deformation behaviour of an AX52 alloy processed by equal channel angular pressing (ECAP)

Z. Trojanová, K. Halmešová, J. Džugan, P. Palček, P. Minárik, P. Lukáč

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 517-523

Journal section: Mechanical and physical properties of materials

To bridge the gap between the ideal case of steady-state for superplasticity and the realistic case of deviation from this, the parameters of constitutive relationship should include the instantaneous microstructure and consider effective stress for deformation instead of applied stress

Understanding the Concurrent Microstructural Evolution and Its Impact on Superplastic Characteristics: An overview

B.P. Kashyap

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 524-531

Journal section: Materials processing and applications

ECAP-processed Zn-22Al and Zn-0.3Al alloys were subjected to long-term natural aging up to 1100 days to evaluate the effect of long-term natural aging on their microstructures and superplastic behaviors. Decrease in the maximum elongation of Zn-22Al alloy is quite low comparing to its ECAP-processed condition while Zn-0.3Al alloy loses more than half of its superplastic elongation at the end of the natural aging.

Effect of long-term natural aging on microstructure and room temperature superplastic behavior of UFG/FG Zn-Al alloys processed by ECAP

M. Demirtas, H. Yanar, G. Purcek

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 532-537

Journal section: Mechanical and physical properties of materials

Two deformation temperatures and two strain rates were selected upon the initial measurement of thermal stability and dependence of m-parameter on strain rate and temperature. Evolution of m-parameter during the tensile tests was measured thank to the periodical switching of the strain rate.

Superplastic deformation of fine-grained AE42 and LAE442 magnesium alloys

P. Minárik, T. Vávra, J. Strásky, B. Hadzima, R. Král

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 538-542

Journal section: Mechanical and physical properties of materials

Superplastic properties of titanium alloys with coarse-grained (CG) and ultrafine-frained (UFG) structure

Regularities in superplasticity of titanium alloys depending on their initial structure and phase composition

I.V. Ratochka, E.V. Naydenkin, I.P. Mishin, O.N. Lykova

PDF Review

Year: 2018

Volume: 8 Issue: 4s

Pages: 543-548

Journal section: Mechanical and physical properties of materials

The studied Al7075 alloy modified by the addition of Sc and Zr processed by 6 passes of ECAP at 120 °C exhibited „low temperature” superplasticity. The maximum elongation of 340 % was achieved at the straining temperature of 200 °C with parameter m = 0.3.

Low temperature superplasticity of the ECAP Al7075-based alloy

P. Málek, O. Molnárová, P. Lejček

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 549-553

Journal section: Mechanical and physical properties of materials

The temperature dependences of total elongation obtained for the alloys under study.

Achieving superior superplastic properties in fine grained intermetallic alloys based on γ-TiAl+α2-Ti3Al

V. Imayev, R. Imayev, T. Nazarova, R. Gaisin, A. Ganeev

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 554-560

Journal section: Mechanical and physical properties of materials

Microstructure and superplastic (SP) characteristics of the alloy 1570C subjected to equal channel angular pressing (ECAP) at the temperature of 325°C and subsequent warm rolling (WR) at the same temperature and cold rolling (CR) at room temperature with reductions 86 and 80%, respectively, were compared.

Structure and Superplasticity of the Al-Mg-TM Alloy after Equal Channel Angular Pressing and Rolling

O. Sitdikov, E. Avtokratova, O. Latypova, M. Markushev

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 561-566

Journal section: Mechanical and physical properties of materials

The novel Ti-21Al-18Nb-1Mo-2V-0.3Si intermetallic alloy with fine-grained structure exhibited superplastic behavior in the temperature range of 875-1000C with the highest elongation of 958% at 960C. Microstructure analysis revealed that under the optimum superplastic conditions the B2/Alpha2 phase boundary sliding played an important role during superplastic deformation of the Ti2AlNb-based alloy. At 960C, the deformation induced grain growth along with the signs of extensive grain rotation and the O→B2→Alpha2 phase transformations were also observed.

Superplastic behavior of the fine-grained Ti-21Al-18Nb-1Mo-2V-0.3Si intermetallic alloy

S.J. Qu, A.H. Feng, M.R. Shagiev, H. Xie, B.B. Li, J. Shen

PDF Article

Year: 2018

Volume: 8 Issue: 4s

Pages: 567-571

Journal section: Structure design and analysis

Current issue

Disclinations in polycrystalline graphene and pseudo-graphenes. Review

CALCULATION OF THE INFLUENCE OF PLASTIC DEFORMATION ON THE VALUE OF THERMOKINETIC EMF IN TiNi ALLOY

Ways of improvement of physicomechanical properties of polymeric composites on the basis of secondary polypropylene and natural excipients

The formation of friction-induced nanocrystalline structure in submicrocrystalline Cu-Cr-Zr alloy рrocessed by DCAP

Octahedral slip in nickel single crystals induced by scratch testing

Structural characterization and microwave properties of Fe75Si25 alloys produced by wet ball milling

Formation and Stability of Ultrafine Structure of Commercial Purity Copper Deformed at 80 K

The formation of martensite crystals with a degenerate structure of transformation twins

Gradient dislocation substructures at fracture of polycrystalline Cu-Mn alloys

The study of critical behavior on antiferromagnetic thin films by computer modeling

Thermal stability of Ti-45Nb mechanically alloyed powder

Extraction of prior grain boundaries from interfaces of martensite based on particular statistics for inter-variant disorientations

Energy and electronic characteristics of silicon polyprismanes: Density functional theory study

Discrete breathers of new type in monoatomic chains

Physical Aspects of the Lithium Ion Interaction with the Imperfect Silicene Located on the Silver Substrate

Effect of the hatching strategies on mechanical properties and microstructure of SEBM manufactured Ti-6Al-4V specimens

Destruction and Wear of Babbit Sn11Sb5.5Cu after Equal-Channel Angular Pressing

Microstructure and mechanical properties of α+β titanium alloy based composites fabricated in situ by casting and subjected to hot forging

Study of thermal properties of biodegradable composite materials based on recycled polypropylene

Nonlinear dynamics of DNA with topological constraints

Effect of heat treatment and hot working on microstructure and mechanical properties of a novel nickel base superalloy

Centrifugal SHS-metallurgy of nitrogen steels

Developments in superplasticity over the last three decades with emphasis on research in Ufa

Current achievements on superplasticity and related phenomena at the Institute for Metals Superplasticity Problems

Influence of strain rate on deformation behaviour of an AX52 alloy processed by equal channel angular pressing (ECAP)

Understanding the Concurrent Microstructural Evolution and Its Impact on Superplastic Characteristics: An overview

Effect of long-term natural aging on microstructure and room temperature superplastic behavior of UFG/FG Zn-Al alloys processed by ECAP

Superplastic deformation of fine-grained AE42 and LAE442 magnesium alloys

Regularities in superplasticity of titanium alloys depending on their initial structure and phase composition

Low temperature superplasticity of the ECAP Al7075-based alloy

Achieving superior superplastic properties in fine grained intermetallic alloys based on γ-TiAl+α2-Ti3Al

Structure and Superplasticity of the Al-Mg-TM Alloy after Equal Channel Angular Pressing and Rolling

Superplastic behavior of the fine-grained Ti-21Al-18Nb-1Mo-2V-0.3Si intermetallic alloy

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