Принятые к публикации статьи
The influence of alloying and microstructure on oxidation resistance of β-solidifying γ-TiAl alloys
The picture shows regression analysis of the mass gain curves and the rate of mass gain depending on oxidation time obtained for samples of the TNM, TNZ and TNZ+ alloys in the near duplex (1 and 2) and near lamellar (3 and 4) conditions subjected to oxidation at 800°C.
Д.М. Трофимов, В.М. Имаев, Р.М. Имаев
Статья
Elastic constants of two-dimensional BN nanostructures
Change in sp2-hybridization to sp3 results in an increase of Young's modulus and a decrease of Poisson's ratio for bornitrane. The substitution of carbon atoms by B and N atoms in the lattice of graphyne and graphene, leads to a decrease in Young's modulus.
P.V. Polyakova
Статья
Mass transfer, morphology and phase composition of steel surface after electrospark deposition of tin bronze
SEM - images of characteristic elements of the SCMnCr 3 steel surface after spark assisted deposition of the tin bronze coating (a, c - spherical particles; b - sponge-like structure; d - influxes; e - cracks; f - the result of the collision of a liquid drop with the surface; g - pore )
N.A. Pan'kin, N.V. Moiseev, S.V. Ilyin, V.P. Mishkin
Статья
Microstructure and mechanical properties of Y-modified low-activation austenitic steel
Microadditions of yttrium has resulted in a decrease in the average grain size of low-activation austenitic steel. The decrease in the efficiency of dispersion strengthening by carbide particles has led to a slight decrease in the strength properties of the new steel. MC particles are containing Ti, V, Ta and W surrounding Y kernel.
I.Y. Litovchenko, S.A. Akkuzin, N.A. Polekhina, K.V. Spiridonova, A.V. Kim, V.V. Osipova, E.N. Moskvichev, V.M. Chernov
Статья
Rate equations for locally adjusted homogenization of viscoelastic composites
Simulation of a uniaxial tension-compression test of a composite with Maxwellian constituents gives average stresses in the matrix, inclusions and the whole composite.
V.G. Zborovskii
Статья
Molecular dynamics study of the effect of structural defects, impurities, and the presence of a shell on the melting temperature of metallic nanoparticles
Using the molecular dynamics method, a study was conducted on the influence of structural defects, carbon and hydrogen impurities, as well as the presence of a shell of another metal, on the melting temperature of metallic nanoparticles.
G.M. Poletaev, A.V. Sannikov, Y.Y. Gafner, S.L. Gafner
Статья
Properties of the Zr-doped CrCoMnFeNi high-entropy alloy after high-pressure torsion
Based on the results of tests for three-point bending, the dependences σ-ε were constructed for samples CrMnFeCoNiZr alloy in the initial state (as-cast) and after HPT. The samples in their initial state exhibit typical plastic behavior even with deformations of more than 10%. HPT processing of samples leads to brittle-plastic behavior of the material.
A.S. Gornakova, A.V. Korneva, B.B. Straumal, N.S. Afonikova, G.S. Davdian, V.I. Orlov, A.V. Druzhinin, J. Dutta Majumdar
Статья
Grain boundary wetting phenomena in the Al-Cu system
Al−Cu phase diagram with the tie-line of grain boundary wetting phase transition at Twmax
B.B. Straumal, O.A. Kogtenkova, A.N. Nekrasov, J. Dutta Majumdar, G. Faraji, D. Bradai
Статья
The response of a new tungsten-nickel-antimony alloy under low and high strain rates
The microstructure of alloys containing 2.4, 3.2 and 4 wt. % Sb sintered at 1300 °C. After Hopkinson's test, adiabatic shear bands were formed in alloys containing 3.2 and 2.4 wt. % Sb.
A. Pahlevani, H. Mohammadian Semnani, H. Abdoos
Статья
Microstructural specificities and martensitic transformations in hot-rolled NiFeGa(B) alloys
Dispersion strengthening of the γ-phase particles by the γ′-phase particles in shape memory NiFeGa(B) alloys occurs during hot rolling and subsequent annealing. The optimal texture of the annealed crystals with the special microstructure, should contribute to strengthening the material without cracking along the grain boundaries.
N.Y. Surikov, E.Y. Panchenko, I.D. Kurlevskaya, E.I. Yanushonite, A.B. Tokhmetova
Статья
Microstructure and mechanical properties of 12 % Cr ferritic-martensitic steel after aging at 450°C during 5000 hours
The microstructure of heat-resistant dispersion-hardened 12% chromium ferritic-martensitic steel 16Cr12MnWSiVNbB (type EP-823) demonstrates good thermal stability during aging at 450°C for 5000 h. This maintains its strength properties at the initial level.
N.A. Polekhina, V.V. Osipova, K.V. Spiridonova, I.Y. Litovchenko, V.M. Chernov, M.V. Leontieva-Smirnova, N.S. Nikolaeva
Статья
Structure and properties of high interstitial as-cast austenitic stainless steel СrMnCN for use at subzero temperatures
The informative drawing shows the structure of CrMnCN steel and the features of its deformation behavior at subzero temperatures.
N.A. Narkevich, M.A. Khimich, M.P. Kalashnikov, Y.F. Gomorova, I.V. Vlasov, M.S. Slobodyan, N.V. Badulin
Статья
Computational study of the diamane molecule and its boron nitride analogue
Strain energy of the diamane molecule and its BN analogue.
Y.A. Bauetdinov, I.V. Berezniczcky
Статья
The influence of equipment features on workpiece slippage under high pressure torsion
To assess slippage at HPT, the “joint torsion of the disk halves” method was used.
D.V. Gunderov, A.M. Mavlyutov, R.N. Asfandiyarov, V.V. Titov, S.D. Gunderova
Статья
Determination of elastic constants for 3D printed thermoplastic materials based on strain measurements using fiber-optic sensors
This paper presents a method for determining elastic constants — the elastic modulus and Poisson's ratio of 3D-printed materials using uniaxial tension test on rectangular cross-section samples. It is proposed to conduct longitudinal and transversal strain measurements on the surface of the samples using fiber-optic sensors based on fiber Bragg gratings, which offer comparable accuracy to standard electrical strain gages while providing advantages such as reduced size, simplified preparation, and minimal equipment requirements
G.S. Serovaev, E.B. Galkina, V.A. Koniukhov
Статья
Nitrogen alloying of the multicomponent CoCrFeNiMn alloy: processing, microstructure and properties (Review)
This review is focused on the recent progress on the relationship between nitrogen-assisted hardening mechanisms and mechanical properties of the CoCrFeMnNi-N family alloys. The basic physical problems, including fabrication of the nitrogen-alloys Cantor alloy, solubility of N in CoCrFeMnNi system, as well as the influence of nitrogen alloying on strength properties of the CoCrFeMnNi-N alloys have been discussed.
E.G. Astafurova, S.V. Astafurov
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