Section of Mechanical and physical properties of materials



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









In the work the possibility of obtaining promising layered metal-rubber composites based on low-carbon steels, aluminum alloy Al-Mg3 and heat-and-frost-resistant rubber by hot pressing is studied. The influence of the composition and design of composites on the impact strength at temperatures of 20 and -60 °C and the damping properties of materials determined by the method of dynamic mechanical analysis is discovered.

Brittle fracture resistance and damping properties of layered metal-polymer composites

In the work the possibility of obtaining promising layered metal-rubber composites based on low-carbon steels, aluminum alloy Al-Mg3 and heat-and-frost-resistant rubber by hot pressing is studied. The influence of the composition and design of composites on the impact strength at temperatures of 20 and -60 °C and the damping properties of materials determined by the method of dynamic mechanical analysis is discovered.
S.V. Kuteneva, S.V. Gladkovsky, D.I. Vichuzhanin, P.D. Nedzvetsky
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Year: 2021 Volume: 11     Issue: 3 Pages: 279-284

Diagrams «torque - twist angle» during torsion testing of samples of hot-rolled coarse-grained (1) and ultrafine-grained (2, 3) titanium Grade4 after ECAP conforms (2) and ECAP conforms + drawing (3)

Strength and torsion fracture mechanism of commercially pure titanium with ultrafine-grained structure

Diagrams «torque - twist angle» during torsion testing of samples of hot-rolled coarse-grained (1) and ultrafine-grained (2, 3) titanium Grade4 after ECAP conforms (2) and ECAP conforms + drawing (3)
G.V. Klevtsov, R.Z. Valiev, N.A. Klevtsova, M.V. Fesenyuk, M.N. Tyurkov, A.V. Polyakov
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Year: 2021 Volume: 11     Issue: 3 Pages: 273-278

The results of experiments on tension of the Ti-6Al-4V alloy in the range of strain rates from 0.1 to 1000 1 / s under uniaxial and complex stress states are presented.
It was found that Ti-6Al-4V alloy exhibits a transition in fracture behavior from ductile to brittle at the stress state triaxiality parameter range from 0.44 to 0.497.

Plastic deformation of titanium alloy Ti-6Al-4V in a complex stressed state under tension at high-strain rates

The results of experiments on tension of the Ti-6Al-4V alloy in the range of strain rates from 0.1 to 1000 1 / s under uniaxial and complex stress states are presented. It was found that Ti-6Al-4V alloy exhibits a transition in fracture behavior from ductile to brittle at the stress state triaxiality parameter range from 0.44 to 0.497.
V.V. Skripnyak, K.V. Iohim, E.G. Skripnyak, V.A. Skripnyak
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Year: 2021 Volume: 11     Issue: 3 Pages: 267-272





Content increasing of nickel up to 20-25 % and molybdenum alloying, leads to a decrease of the peak strain values level during forging in the temperature range 900 - 1200 ° С at the 0,1 s-1 deformation rate

Effect of increasing nickel and molybdenum content in austenitic steel on thermal deformation conditions for achieving the peak strain

Content increasing of nickel up to 20-25 % and molybdenum alloying, leads to a decrease of the peak strain values level during forging in the temperature range 900 - 1200 ° С at the 0,1 s-1 deformation rate
A.S. Tsvetkov, I.V. Teplukhina, A.V. Kosulnikova
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Year: 2021 Volume: 11     Issue: 2 Pages: 170-174





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