Section of Mechanical and physical properties of materials

The picture shows the effect of upset forging and heat treatment on yield strength (YS) and ultimate tensile strength (UTS) of the TNZ γ-TiAl alloy in the temperature range of the brittle-ductile transition.

Microstructure and mechanical properties of a new β-solidifying γ-TiAl alloy in the temperature range of the brittle-ductile transition

The picture shows the effect of upset forging and heat treatment on yield strength (YS) and ultimate tensile strength (UTS) of the TNZ γ-TiAl alloy in the temperature range of the brittle-ductile transition.
D.M. Trofimov, V.M. Imayev, R.M. Imayev
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Year: 2023 Volume: 13     Issue: 4s Pages: 462-469


The combination of hot MIF and subsequent cryorolling is a highly efficient method for producing (ultra)fine grained aluminum sheets from 1570C alloy with unique mechanical properties.

Effect of cryogenic rolling on structure and mechanical properties of ultrafine grained 1570C alloy

The combination of hot MIF and subsequent cryorolling is a highly efficient method for producing (ultra)fine grained aluminum sheets from 1570C alloy with unique mechanical properties.
E.V. Avtokratova, O.S. Sitdikov, R.R. Zagitov, V.V. Tereshkin, S.V. Krymskiy, O.E. Latypova, M.V. Markushev
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Year: 2023 Volume: 13     Issue: 4s Pages: 426-430


Non-linear volt-current dependences with a zero current area have shown their ties with the structural state of carbon surface layer formed by 2-3 graphene planes assembled in an onion-shaped structure with these planes disoriented with respect to each other so that their new positions differ from the positions in the ideal graphite crystal.

Local conductivity of thermobarically sintered detonation nanodiamond

Non-linear volt-current dependences with a zero current area have shown their ties with the structural state of carbon surface layer formed by 2-3 graphene planes assembled in an onion-shaped structure with these planes disoriented with respect to each other so that their new positions differ from the positions in the ideal graphite crystal.
V.A. Plotnikov, S.V. Makarov, D.G. Bogdanov, A.S. Bogdanov
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Year: 2023 Volume: 13     Issue: 4 Pages: 382-386


Average grain size and tensile strength of nanostructured Invar alloy (36N) as the function of annealing temperature in different structural states. SEM images of the microstructure of the 36N alloy in the nanostructured state state and after hourly annealing.

Effect of microstructure on the strength of nanostructured Invar 36 alloy

Average grain size and tensile strength of nanostructured Invar alloy (36N) as the function of annealing temperature in different structural states. SEM images of the microstructure of the 36N alloy in the nanostructured state state and after hourly annealing.
N.R. Yusupova, K.A. Krylova, R.R. Mulyukov
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Year: 2023 Volume: 13     Issue: 3 Pages: 255-259

Mechanical properties, corrosion resistance and biocompatibility in vitro of pure Zn processed by high pressure torsion (HPT) were studied. Grain refinement and texture changes caused by HPT increase strength and ductility. HPT does not worsen the RBC hemolysis and ML viability of pure Zn. HPT insignificantly increases the degradation rate.

Effect of high-pressure torsion on mechanical properties and in vitro biocompatibility of pure Zn

Mechanical properties, corrosion resistance and biocompatibility in vitro of pure Zn processed by high pressure torsion (HPT) were studied. Grain refinement and texture changes caused by HPT increase strength and ductility. HPT does not worsen the RBC hemolysis and ML viability of pure Zn. HPT insignificantly increases the degradation rate.
N.S. Martynenko, N.Y. Anisimova, N.Y. Tabachkova, V.N. Serebryany, O.V. Rybalchenko, A.V. Sannikov, D.R. Temralieva, E.A. Lukyanova, E.A. Kornjushenkov, M.V. Kiselevskiy, S.V. Dobatkin
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Year: 2023 Volume: 13     Issue: 4 Pages: 308-311




The effects of the heat treatment regime on the fatigue strength and frequency stability of samples made of martensitic-aging steel 03Ni18CoMo5Ti-EBR were investigated. The tests were carried out on an original electromagnetic installation operating in self-oscillating mode during cyclic tests using a "soft" cantilever bending scheme of flat samples.

Heat treatment effect on fatigue strength and frequency stability of maraging steel

The effects of the heat treatment regime on the fatigue strength and frequency stability of samples made of martensitic-aging steel 03Ni18CoMo5Ti-EBR were investigated. The tests were carried out on an original electromagnetic installation operating in self-oscillating mode during cyclic tests using a "soft" cantilever bending scheme of flat samples.
V.V. Mylnikov, E.A. Dmitriev
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Year: 2023 Volume: 13     Issue: 3 Pages: 266-271

The microstructure of samples that were formed after mill processing has differences from the structure of samples that were formed after the charge mixing in the form of a noticeable grinding of the excess ɛ-phase, increased chromium content both in the α-solid solution and excess ɛ-phase (by 34%), as well as crushing of metallic chromium inclusions.

Hardening of powdered tin-nickel-chromium bronze by mechanical alloying of the initial charge

The microstructure of samples that were formed after mill processing has differences from the structure of samples that were formed after the charge mixing in the form of a noticeable grinding of the excess ɛ-phase, increased chromium content both in the α-solid solution and excess ɛ-phase (by 34%), as well as crushing of metallic chromium inclusions.
S.S. Belyaeva, A.A. Khlybov, E.S. Belyaev, T.M. Kolosova, D.A. Ryabov, P.S. Afanasyeva, I.M. Shishkina, K.S. Smetanin
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Year: 2023 Volume: 13     Issue: 3 Pages: 225-231





The results of this work demonstrate improved wear resistance of the Ti6Al4V-Cu alloys, because copper provides refining the β-grains and consequently α- and α′ crystallites.

Tribological behavior of the electron beam additive manufactured Ti6Al4V-Cu alloy

The results of this work demonstrate improved wear resistance of the Ti6Al4V-Cu alloys, because copper provides refining the β-grains and consequently α- and α′ crystallites.
A.V. Nikolaeva, A.P. Zykova, A.V. Chumaevskii, A.V. Vorontsov, E.O. Knyazhev, A.V. Nikonenko, S.Yu. Tarasov
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Year: 2023 Volume: 13     Issue: 2 Pages: 158-163


The magnetoresistive effect of the samples in initial state reached 3.25 % in magnetic field of 10 kOe. It was established that the composites structure, magnetoresistivity and magnetic properties are steady against thermal heating.

The effect of oxygen-free MgF2 matrix on the physical properties of (CoFeZr)х(MgF2)100−х nanocomposites

The magnetoresistive effect of the samples in initial state reached 3.25 % in magnetic field of 10 kOe. It was established that the composites structure, magnetoresistivity and magnetic properties are steady against thermal heating.
O.V. Stognei, T.V. Tregubova, I.M. Tregubov
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Year: 2023 Volume: 13     Issue: 2 Pages: 109-114



Regardless of δ-ferrite fraction in the additively manufactured CrNi stainless, the increase in strain rate slows down the kinetics of strain-induced γ→α' martensitic transformation, but weakly influences the stress and strain, at which the macroscopic transformation stage starts.

Strain-rate dependent deformation behavior of additively manufactured stainless steel with different fractions of δ-ferrite

Regardless of δ-ferrite fraction in the additively manufactured CrNi stainless, the increase in strain rate slows down the kinetics of strain-induced γ→α' martensitic transformation, but weakly influences the stress and strain, at which the macroscopic transformation stage starts.
S.V. Astafurov, E.V. Melnikov, M.Y. Panchenko, K.A. Reunova, A.V. Luchin, E.A. Zagibalova, E.G. Astafurova, E.A. Kolubaev
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Year: 2023 Volume: 13     Issue: 1 Pages: 28-32

Diagrams "Torque - angle of twist" (a, b) and "Fatigue kinetic diagrams" (c, d) of materials for medical applications. 1- СG materials; 2, 3 - UFG materials (2- ECAP-C; 3- ECAP-C +D)

Strength and fracture mechanism of nanostructured metal materials for medical applications

Diagrams "Torque - angle of twist" (a, b) and "Fatigue kinetic diagrams" (c, d) of materials for medical applications. 1- СG materials; 2, 3 - UFG materials (2- ECAP-C; 3- ECAP-C +D)
G.V. Klevtsov, R.Z. Valiev, M.V. Fesenyuk, N.A. Klevtsova, M.N. Tyurkov, A.A. Matchin, E.V. Nosov
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Year: 2022 Volume: 12     Issue: 4s Pages: 493-498


Al-Nb composites demonstrate a considerable dependence of tensile strength on HPT straining which almost doubled upon the increase of torsional straining from 30 to 100 rotations of HPT anvil and reached 530 MPa. Annealing resulted in an increase in ductility up to ~12% with a slight decrease in tensile strength.

Mechanical properties of Al-Nb in situ metal-matrix composites fabricated by constrained high pressure torsion at 10 GPa and subsequent annealing

Al-Nb composites demonstrate a considerable dependence of tensile strength on HPT straining which almost doubled upon the increase of torsional straining from 30 to 100 rotations of HPT anvil and reached 530 MPa. Annealing resulted in an increase in ductility up to ~12% with a slight decrease in tensile strength.
K.S. Nazarov, G.F. Korznikova, R.K. Khisamov, R.R. Timiryaev, E.A. Korznikova, G.R. Khalikova, R.U. Shayakhmetov, S.N. Sergeyev, R.R. Kabirov, R.R. Mulyukov
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Year: 2022 Volume: 12     Issue: 4 Pages: 360-366


Carbide/binder grain boundaries in a FIB lamella prepared from the WC-Co-Re cemented carbide were examined by high-angle annular dark field scanning transmission electron microscopy and energy dispersive X-ray spectroscopy at a high resolution. Rhenium was found to segregate at the grain boundaries forming complexions of 2 to 3 atomic monolayers, which presumably consist of mixed W-Re carbide.

Complexions at carbide / binder grain boundaries of Re-containing submicron cemented carbide

Carbide/binder grain boundaries in a FIB lamella prepared from the WC-Co-Re cemented carbide were examined by high-angle annular dark field scanning transmission electron microscopy and energy dispersive X-ray spectroscopy at a high resolution. Rhenium was found to segregate at the grain boundaries forming complexions of 2 to 3 atomic monolayers, which presumably consist of mixed W-Re carbide.
A.A. Zaitsev, A.A. Meledin
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Year: 2023 Volume: 13     Issue: 1 Pages: 9-13


The figure shows the mass gain depending on oxidation time of the TNM (Ti-43.5Al-4Nb-1Mo-0.1B, at,%) and TNZ (Ti-44Al-6(Nb,Zr,Hf)-0.15B, at.%) samples, which were exposed to air at 800°C. The dotted lines show the approximation from 500 to 1000 h.

The effect of alloying and fluorination on the oxidation behavior of β-solidifying γ-TiAl based alloys

The figure shows the mass gain depending on oxidation time of the TNM (Ti-43.5Al-4Nb-1Mo-0.1B, at,%) and TNZ (Ti-44Al-6(Nb,Zr,Hf)-0.15B, at.%) samples, which were exposed to air at 800°C. The dotted lines show the approximation from 500 to 1000 h.
L.R. Shaikhutdinova, V.M. Imayev, D.M. Trofimov, R.M. Imayev
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Year: 2022 Volume: 12     Issue: 4 Pages: 343-349

As a result of cryogenic deformation of Ni to 90%, a coarse fibered structure with a developed nanocellular substructure and extremely low amounts of dynamically recrystallized nanosized grains was formed.

Effect of strain of cryorolling on structure and strength of nickel

As a result of cryogenic deformation of Ni to 90%, a coarse fibered structure with a developed nanocellular substructure and extremely low amounts of dynamically recrystallized nanosized grains was formed.
M.V. Markushev, I.S. Valeev, E.V. Avtokratova, R.R. Ilyasov, A.K. Valeeva, S.V. Krimsky, O.S. Sitdikov
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Year: 2022 Volume: 12     Issue: 4s Pages: 409-413


Представлены две деформационные кривые при растяжении без тока и с током в сплаве с памятью формы. Видны скачки напряжения вверх и вниз, вызванные фазовым преращением и электропластическим эффектом, соответственно.

Atypical behavior of materials during current-assisted tension

Представлены две деформационные кривые при растяжении без тока и с током в сплаве с памятью формы. Видны скачки напряжения вверх и вниз, вызванные фазовым преращением и электропластическим эффектом, соответственно.
V.V. Stolyarov
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Year: 2022 Volume: 12     Issue: 4 Pages: 292-297

The effect of carbon-alloying (1 at.%) on the hydrogen embrittlement susceptibility of equiatomic high-entropy alloy FeNiCoCrMn has been studied. The carbon-alloyed alloy has higher resistance to hydrogen embrittlement compared to the interstitial-free Cantor alloy.

Effect of carbon alloying on hydrogen embrittlement of a Cantor alloy

The effect of carbon-alloying (1 at.%) on the hydrogen embrittlement susceptibility of equiatomic high-entropy alloy FeNiCoCrMn has been studied. The carbon-alloyed alloy has higher resistance to hydrogen embrittlement compared to the interstitial-free Cantor alloy.
M.Y. Panchenko, E.V. Melnikov, D.Y. Gurtova, E.G. Astafurova
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Year: 2022 Volume: 12     Issue: 4 Pages: 282-286

Multilayer structures of resistive sensors  based on thin polymer films, SEM images of microstructures of film samples and calibration characteristics

Effect of the morphology of films of polyaniline derivatives poly-2-[(2E)-1‑methyl-2‑butene-1‑yl]aniline and poly-2-(cyclohex-2‑en-1‑yl)aniline on sensory sensitivity to humidity and ammonia vapors

Multilayer structures of resistive sensors based on thin polymer films, SEM images of microstructures of film samples and calibration characteristics
R.B. Salikhov, I.N. Mullagaliev, B.R. Badretdinov, A.D. Ostaltsova, T.T. Sadykov, A.G. Mustafin
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Year: 2022 Volume: 12     Issue: 4 Pages: 309-315



Typical view of the "Torque - angle of twist" diagrams during the torsion test of specimens with a diameter of 3 mm made from magnesium alloy Mg-Zn-Ca after annealing (1) and after ECAP (2)

Strength and fracture mechanism of a magnesium alloy for medical applications after equal-channel angular pressing

Typical view of the "Torque - angle of twist" diagrams during the torsion test of specimens with a diameter of 3 mm made from magnesium alloy Mg-Zn-Ca after annealing (1) and after ECAP (2)
G.V. Klevtsov, R.Z. Valiev, N.A. Klevtsova, M.V. Fesenyuk, O.B. Kulaysova, I.N. Pigaleva
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Year: 2022 Volume: 12     Issue: 3 Pages: 203-208



The thermokinetics of shape recovery after bending of Ni-rich titanium nickelide was studied. Loading–unloading procedure was carried out in various phase states using isothermal and non-isothermal modes varying loading strain. The two-stage character of shape recovery under heating is revealed; the hypothesis of its origin is suggested.

Thermokinetics of shape recovery of nanostructured titanium nickelide

The thermokinetics of shape recovery after bending of Ni-rich titanium nickelide was studied. Loading–unloading procedure was carried out in various phase states using isothermal and non-isothermal modes varying loading strain. The two-stage character of shape recovery under heating is revealed; the hypothesis of its origin is suggested.
E.P. Ryklina, D. . Ashimbaev, S.R. Murygin
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Year: 2022 Volume: 12     Issue: 2 Pages: 89-93

Possibility of using silver nanoparticles (Ag NPs) as additive for silicone elastomers as internal heating agent for microwave radiation assisted local curing is experimentally investigated. The obtained PDMS/AgNP composite materials acquired a significantly higher work of adhesion to glass, a lower viscoelastic modulus and slightly higher wettability. With time of microwave treatment and consequently cross-linking of the material those parameters head towards or approach those of the stock PDMS material.

Metal nanoparticles as an electromagnetic microwave heat-cure agent for polydimethylsiloxane elastomers

Possibility of using silver nanoparticles (Ag NPs) as additive for silicone elastomers as internal heating agent for microwave radiation assisted local curing is experimentally investigated. The obtained PDMS/AgNP composite materials acquired a significantly higher work of adhesion to glass, a lower viscoelastic modulus and slightly higher wettability. With time of microwave treatment and consequently cross-linking of the material those parameters head towards or approach those of the stock PDMS material.
E.V. Antonov, I.M. Sosnin, A. Tiwari, N.D. Prasolov, L.M. Dorogin
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Year: 2022 Volume: 12     Issue: 1 Pages: 49-53

Extensive hydrogen desorption, which is continued and not ceased even after 24 hours after pre-exposure of ZK60 samples in the corrosion solution, is the evidence for the corrosion reaction occurring under the layer of corrosion products.

Evidence for the presence of corrosive solution within corrosion products film in magnesium alloy ZK60

Extensive hydrogen desorption, which is continued and not ceased even after 24 hours after pre-exposure of ZK60 samples in the corrosion solution, is the evidence for the corrosion reaction occurring under the layer of corrosion products.
E.D. Merson, V.A. Poluyanov, P.N. Myagkikh, D.L. Merson, A.Y. Vinogradov
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Year: 2022 Volume: 12     Issue: 1 Pages: 76-80



The force change depending on the deflection during DWTT 
Curve No. 2 - the notch is perpendicular to the direction of vibration (WD); Curve No. 3 - the notch is parallel to the direction of vibration (WD).
A characteristic feature of the deformation diagrams for specimens with the parallel notch is the presence of two local maxima. This contrasts with the force change curve for the perpendicular notch specimens.

Anisotropy of impact toughness of Ti-6Al-4V alloy joints processed by linear friction welding

The force change depending on the deflection during DWTT Curve No. 2 - the notch is perpendicular to the direction of vibration (WD); Curve No. 3 - the notch is parallel to the direction of vibration (WD). A characteristic feature of the deformation diagrams for specimens with the parallel notch is the presence of two local maxima. This contrasts with the force change curve for the perpendicular notch specimens.
R.M. Kashaev, M.I. Nagimov
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Year: 2021 Volume: 11     Issue: 4s Pages: 557-560

Ductile-brittle transition behavior of medium-carbon steel with 0.32 %C-1,35 %Mn-0,003 %B by instrumented impact testing and fracture analysis was studied. On the load-displacement curves the periods corresponding to different zones of crack propagation are distinguished. Each period can be quantitatively described by a set of strength, plastic and gradient parameters.

Parameters of load-displacement curves and their correlation with the fracture surface in medium-carbon steel

Ductile-brittle transition behavior of medium-carbon steel with 0.32 %C-1,35 %Mn-0,003 %B by instrumented impact testing and fracture analysis was studied. On the load-displacement curves the periods corresponding to different zones of crack propagation are distinguished. Each period can be quantitatively described by a set of strength, plastic and gradient parameters.
V.A. Khotinov, A.B. Ovsyannikov, A.A. Andreev, V.M. Farber
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Year: 2021 Volume: 11     Issue: 4 Pages: 514-518

Consolidation of detonation nanodiamond: effect of thermobaric sintering. The size increase in the nanodiamond core occurs through the growth of both the diamond phase and ordered graphite.

Impact of structural changes in nanocrystals upon mechanical properties of HPHT sintered nanodiamond

Consolidation of detonation nanodiamond: effect of thermobaric sintering. The size increase in the nanodiamond core occurs through the growth of both the diamond phase and ordered graphite.
D.G. Bogdanov, V.A. Plotnikov, S.V. Makarov, A.S. Bogdanov, A.P. Yelisseyev, A.A. Chepurov, E.I. Zhimulev
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Year: 2021 Volume: 11     Issue: 4 Pages: 485-490

The microstructure, phase composition and mechanical properties of a low-carbon steel billet, obtained by the electron-beam additive manufacturing method using an industrial welding wire, have been studied.

Microstructure and mechanical properties of low-carbon steel fabricated by electron-beam additive manufacturing

The microstructure, phase composition and mechanical properties of a low-carbon steel billet, obtained by the electron-beam additive manufacturing method using an industrial welding wire, have been studied.
E.G. Astafurova, E.V. Melnikov, S.V. Astafurov, M.Y. Panchenko, K.A. Reunova, V.A. Moskvina, G.G. Maier, E.A. Kolubaev
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Year: 2021 Volume: 11     Issue: 4 Pages: 427-432

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