Current issue

Regular issue 11 (3) 2021

A successful attempt to incorporate knowledge obtained from severe plastic deformations into the AA5XXX series aluminum alloys treatment has been made. These advantages allowed revealing age hardenable mechanisms in non-age-hardenable alloy AA5XXX. All side investigation of structure and properties was made.

Effect of initial state and processing temperature on structure and properties under hot torsion of AA5754 alloy

A. Kulakowska, K. Laber, H. Dyja, A. Zavdoveev

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 233-238

Journal section: Materials processing and applications

$During fracture of high-pressure pipelines, the longitudinal crack can stop in one of two ways, which are discussed in the article.$

Two types of the crack arrest during full-scale pneumatic testing of main gas pipelines

D.E. Kaputkin, A.B. Arabey

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 239-243

Journal section: Experimental methods in materials research

Assessment of the performance of carbon Nano tube reinforcement in Nano composite coatings.

Assessment and effect of reinforcement of multi-walled carbon nanotubes in Ni-Al2O3 and Ni-SiC nanocomposite coatings using pulse reverse electrodeposition technique

K. Venkatesh Raja, A. Ranjith Kumar, S. Naren

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 244-248

Journal section: Experimental methods in materials research

Prediction exactly of the failure zone in Lead rupture within the same non-homogeneous zone previously detected exactly using Scanning Contact Potentiometry technique,which was done in the elastic mode before conducting the tensile test.

Experimental prediction of lead failure under tensile load using scanning contact potentiometry technique

A.A. Abu Ghazal, Y.N. Husein, V.I. Surin, S.A. Alkhdour, G.H. Al-Malkawi

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 249-253

Journal section: Experimental methods in materials research

Computer modeling of the pressure welding process of cylindrical workpieces from heterophase nickel-based superalloys through an interlayer was carried out.Two combinations of materials to be welded were considered: I – cylinders of the same wrought EP975 nickel-based superalloys in the initial coarse-grained state were welded through an interlayer of EP975 with a fine-grained microstructure; II – cylinders of different kinds nickel-based alloys, including wrought alloy EP975 in a coarse-grained state and intermetallic alloy VKNA-25 with a single-crystal structure, were welded through an interlayer of EP975 alloy with a fine-grained microstructure of the microduplex type.
The distribution of equivalent, axial, radial, circumferential and shear components of stress and strain in the samples have been investigated. Analysis of the simulation results allows us to conclude that, in comparison to welding of the same name materials, when welding of different kinds materials, the radial, axial and circumferential stresses values increase. The maximum values area of shear stresses in the region of contact between the cylinders and the interlayer also increases. This factors combination allows us to conclude about more favorable pressure welding conditions for welding of different kinds alloys in comparison with the same name materials.

Computer simulation of pressure welding of heat resistant heterophase nickel-based superalloys specimens through an interlayer

A.K. Akhunova, V.A. Valitov, E.V. Galieva

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 254-260

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

$The microstructural images of superalloy subjected to different solid solution treatment obtained near the fracture zones of samples after creep tests at 850°C / 450 MPa.$

Long-term strength and creep resistance of a polycrystalline Re-containing nickel-based superalloy

S.K. Mukhtarov, V.M. Imayev, R.V. Shakhov, A.A. Ganeev

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 261-266

Journal section: Mechanical and physical properties of materials

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

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

V.V. Skripnyak, K.V. Iohim, E.G. Skripnyak, V.A. Skripnyak

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 267-272

Journal section: Mechanical and physical properties of materials

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

G.V. Klevtsov, R.Z. Valiev, N.A. Klevtsova, M.V. Fesenyuk, M.N. Tyurkov, A.V. Polyakov

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 273-278

Journal section: Mechanical and physical properties of materials

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

S.V. Kuteneva, S.V. Gladkovsky, D.I. Vichuzhanin, P.D. Nedzvetsky

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 279-284

Journal section: Mechanical and physical properties of materials

Cold rolling of Fe-17Cr-13Ni-3Mo-0.01C austenitic stainless steel leads to the formation of a fragmented structure with a high density of crystal structure defects. The main deformation mechanism during rolling is dislocation slip, which is accompanied by the development of mechanical twinning as an additional mechanism contributing to structure fragmentation. Saturation with hydrogen promotes more active development of twinning and the occurrence of the γ → ε phase transformation, and an increase in the current density upon saturation of the samples with hydrogen before rolling and a decrease in the deformation temperature is accompanied by an increase in the density of twin boundaries and the density of dislocations.

Effect of electrolytic hydrogen saturation on deformation mechanisms of Fe-17Cr-13Ni-3Mo-0.01C austenitic stainless steel during cold rolling

E.V. Melnikov, M.Y. Panchenko, K.A. Reunova, E.G. Astafurova

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 285-290

Journal section: Structure design and analysis

Confocal laser scanning microscopy technique allows high accuracy
reconstruction of the corrosion damage topology, providing access to the
assessment of the metal's volume loss and the corrosion rate

Quantitative estimation of the corrosion rate of metallic materials using confocal laser scanning microscopy

V.A. Danilov, D.L. Merson

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 291-297

Journal section: Experimental methods in materials research

The characteristics of the stress-strain state determine the path and geometry of quasi-cleavage cracks in hydrogen-embrittled low-carbon steels.

Effect of the stress-strain state on the path of quasi-cleavage hydrogen-assisted cracking in low-carbon steel

E.D. Merson, V.A. Poluyanov, P.N. Myagkikh, D.L. Merson, A.Y. Vinogradov

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 298-303

Journal section: Mechanical and physical properties of materials

Electric spark deposition of AISI 1045 in mixtures of iron granules with an amorphous CrMoWCBSi composition and the addition of WC powder makes it possible to form a composite coating of an amorphous matrix reinforced with tungsten carbide grains.

Hardening of FeCrMoWCBSi amorphous electrospark coatings with tungsten carbide

A.A. Burkov, M.A. Kulik

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 304-308

Journal section: Mechanical and physical properties of materials

Structure of the high-entropy alloy irradiated by an electron beam with the energy density of 30 J/cm2. Temperature distribution on time throughout the depth for the energy density Es = 30 J/cm2.

The mechanism of formation of surface micro- and nanostructures in the AlCoCrFeNi high-entropy alloy during electron-beam treatment

S.A. Nevskii, S.V. Konovalov, K.A. Osintsev, Y.F. Ivanov, A.Y. Granovskii, V.E. Gromov

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 309-314

Journal section: Materials processing and applications

Graphical abstract shows the electrochemical behaviour of nanocrystalline Ni, Ni90Cu10, Ni-TiN and Ni90Cu10-TiN thin films processed by reactive magnetron co-sputtering

Effect of alloying with Cu and TiN addition on the electrochemical behavior of nanocrystalline Ni processed by magnetron sputtering

M. Kumar

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 315-320

Journal section: Structure design and analysis

A defective nanotube containing 5 and 8 -membered rings shows the highest adsorption capacity of 1.82 %wt/wt which is higher than the pristine nanotube and the adsorption capacity increases with %defect.

Room temperature hydrogen storage in defective single-walled carbon nanotubes: a molecular dynamics study

M. Garg, S. Ghosh, V. Padmanabhan

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 321-326

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

Modification of a microstructural model allows describing the strain variation on isothermal holding and predicting conditions (temperature and stress), at which the maximum of isothermal strain is attained.

Simulation of isothermal reversible strain in the Ti40.7Hf9.5Ni44.8Cu5 alloy using a microstructural model

E.S. Demidova, F.S. Belyaev, S.P. Belyaev, N.N. Resnina, A.E. Volkov

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 327-331

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

The effect of the temperature of equal-channel angular pressing ranging from 0.45 to 0.75 Tm on the processes of grain refinement in the Al-3% Cu alloy was investigated. An increase in temperature led to increasing the average size of new grains, decreasing the average misorientation of intergranular boundaries, and shifted the formation of a fine-grained structure towards the higher strains.

Influence of the temperature of equal-channel angular pressing on fine-grain structure formation in the alloy Al-3 % Cu

O.S. Sitdikov, E.V. Avtokratova, R.R. Zagitov, M.V. Markushev

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 332-337

Journal section: Structure design and analysis

The process of formation of a solitary wave under external harmonic action at the frequencies of the forbidden zone of the crystal.

Molecular dynamic analysis of energy transport in a Pt3Al crystal under the impact in the spectrum gap frequency

P.V. Zakharov, S.V. Dmitriev, E.A. Korznikova

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 338-344

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

$Heat treatment at 700 ° C of commercially pure grade 4 - Grade 4 titanium results in the release of β-modification nanoparticles. The deformation of the material leads to an increase in the volume fraction of particles precipitated after annealing.$

Study of second phase precipitates in nanostructured commercially pure titanium

L.R. Rezyapova, R.R. Valiev, V.D. Sitdikov, R.Z. Valiev

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 345-350

Journal section: Structure design and analysis

It was found that the electric pulse of low capacity leads to the development in the cryorolled pure aluminum of recovery and continuous recrystallization without hardness changes. Under threshold energy conditions there were found transition from in-situ recrystallization to grain growth, and sharp decrease in hardness.

Influence of electric pulse treatment on structure and hardness of cryorolled aluminum

I.S. Valeev, A.K. Valeeva, R.R. Ilyasov, E.V. Avtokratova, S.V. Krymskiy, O.S. Sitdikov, M.V. Markushev

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 351-356

Journal section: Structure design and analysis

Regulation of the corrosion rate of bioresorbable magnesium alloys through the use of vacuum zirconium coatings.

Regulation of corrosion damage of magnesium alloys through the use of vacuum zirconium coatings

M.L. Linderov, M.A. Afanasyev, A.N. Asmolov, V.A. Danilov, D.L. Merson

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 357-362

Journal section: Mechanical and physical properties of materials

The oxide layer in the zone of solid-phase joint (SPJ) of ultrafine-grained titanium alloy VT6. The observed oxide layer reduces the shear strength of the SPJ by more than 2 times.

Oxide surface layer and solid-phase weldability of titanium alloys

R.Y. Lutfullin, M.K. Mukhametrakhimov

PDF Article

Year: 2021

Volume: 11 Issue: 3

Pages: 363-366

Journal section: Structure design and analysis

Retraction notice to: “Effect of grain orientation on friction and wear behavior of AZ91 magnesium alloy” [Lett. Mater. 11(2) (2021) 135-139]

M. Kumar

PDF

Year: 2021

Volume: 11 Issue: 3

Pages: 367-367

Journal section: Mechanical and physical properties of materials

From Editorial board: In memory of Dr. Sci. M.M. Farztdinov (1921-1991), p. 368

Current issue

Effect of initial state and processing temperature on structure and properties under hot torsion of AA5754 alloy

Two types of the crack arrest during full-scale pneumatic testing of main gas pipelines

Assessment and effect of reinforcement of multi-walled carbon nanotubes in Ni-Al2O3 and Ni-SiC nanocomposite coatings using pulse reverse electrodeposition technique

Experimental prediction of lead failure under tensile load using scanning contact potentiometry technique

Computer simulation of pressure welding of heat resistant heterophase nickel-based superalloys specimens through an interlayer

Long-term strength and creep resistance of a polycrystalline Re-containing nickel-based superalloy

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

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

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

Effect of electrolytic hydrogen saturation on deformation mechanisms of Fe-17Cr-13Ni-3Mo-0.01C austenitic stainless steel during cold rolling

Quantitative estimation of the corrosion rate of metallic materials using confocal laser scanning microscopy

Effect of the stress-strain state on the path of quasi-cleavage hydrogen-assisted cracking in low-carbon steel

Hardening of FeCrMoWCBSi amorphous electrospark coatings with tungsten carbide

The mechanism of formation of surface micro- and nanostructures in the AlCoCrFeNi high-entropy alloy during electron-beam treatment

Effect of alloying with Cu and TiN addition on the electrochemical behavior of nanocrystalline Ni processed by magnetron sputtering

Room temperature hydrogen storage in defective single-walled carbon nanotubes: a molecular dynamics study

Simulation of isothermal reversible strain in the Ti40.7Hf9.5Ni44.8Cu5 alloy using a microstructural model

Influence of the temperature of equal-channel angular pressing on fine-grain structure formation in the alloy Al-3 % Cu

Molecular dynamic analysis of energy transport in a Pt3Al crystal under the impact in the spectrum gap frequency

Study of second phase precipitates in nanostructured commercially pure titanium

Influence of electric pulse treatment on structure and hardness of cryorolled aluminum

Regulation of corrosion damage of magnesium alloys through the use of vacuum zirconium coatings

Oxide surface layer and solid-phase weldability of titanium alloys

Retraction notice to: “Effect of grain orientation on friction and wear behavior of AZ91 magnesium alloy” [Lett. Mater. 11(2) (2021) 135-139]

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