Papers accepted for publication
Improving the accuracy of finite element modeling of superplastic forming processes
Unlike of our previous report the method suggested takes into account consideration the initial stage of superplastic forming, when the pressure of the inert gas changes from the initial zero level to a pre-given constant value. It is shown that such kind refinement enables one to improve considerably the accuracy of calculating the value of the strain rate sensitivity index, m, and, as a result, to provide more accurate finite element description of the superplastic forming processes.
O. Tulupova, C. Gumerova, V. Ganieva, A. Kruglov, F. Enikeev
Article
First-principles calculation of possible carbon positions over cementite lattice
Structures with all C atoms in DPS positions and one or all C atoms in DOS position are mechanically unstable, in other cases, the C atom remained on NOS or DPS position with increased energy
A.V. Verkhovykh, K.Y. Okishev, A.A. Mirzoev, N.S. |Dyuryagina
Article
Formation of a Pore as Stress Relaxation Mechanism in Decahedral Small Particles
Theoretical model of a spherical pore in a decahedral small particle.
S. Krasnitckii, M. Gutkin, A. Kolesnikova, A. Romanov
Article
Structure and corrosion behaviour of CrxAl(Si)yC coatings fabricated by the vacuum arc discharge technique
CrxAl(Si)yC with a thickness of 3800 nm was deposited by PVD technique
Al is chemical bonded with silicon, Si – with carbon and aluminum.
Melting and crystallization of Al-Si system reduce the coating protective properties
A.P. Rubshtein, A.B. Vladimirov, S.A. Plotnikov, V.B. Vykhodets, T.E. Kurennykh
Article
Phase transitions in an ordered 2D array of cubic nanoparticles
Array of cubic nanoparticles.
S.V. Belim, O.V. Lyakh
Article
Search for stable skyrmion lattices at the ground state in a multiferroic nanofilm using artificial neural networks
This work is devoted to the search for such values of the interaction parameters and the intensity of external fields in a three-layer multiferroic film , at which nontrivial topological magnetic structures are stable in the ground state. To reduce the computational complexity of searching in the parametric space, we use the apparatus of artificial neural networks
A.G. Nugumanov, I.F. Sharafullin
Article
Molecular dynamics study of the influence of free volume and orientation of the crystallization front on its velocity in nickel
The influence of free volume and orientation of the crystallization front relative to the growing crystal on the front movement velocity in nickel was studied by the method of molecular dynamics
G.M. Poletaev, I.V. Karakulova, D.V. Novoselova, R.Y. Rakitin
Article
Microstructure and mechanical properties of a welded joint obtained by friction stir welding of thin copper and aluminum plates
Friction stir welding of thin aluminum and copper plates produced a welded joint in which a composite-like structure is formed.
V.N. Danilenko, L.U. Kiekkujina, A.S. Selivanov, Y.V. Logachev, V.V. Atroshenko, R.R. Mulyukov
Article
Annealing-induced recrystallization of iron after high pressure torsion at 80 K
Grain growth during recrystallization of pure iron with a submicrocrystalline structure formed by high-pressure torsion deformation at cryogenic temperature
K.E. Shugaev, M.V. Degtyarev, L.M. Voronova, T.I. Chashchukhina, T.M. Gapontseva
Article
A study of the distribution of Au atoms in the LI2 superstructure of the Fe25Pd50Au25 alloy using field ion microscopy
(a) Scheme of an arbitrary pole of the sample surface (the edge of every round disc is made up of atoms at the step edges and atoms at the edge): A, C – atoms in the step edge; B – atom in the center of the plane (half of atoms bonds are broken); D – separately placed atom at the edge of the plane (has one non broken bond).
(b) Field ion image of the disordered state of the alloy Fe25Pd50Au25. The statistical arrangement of atoms in the crystal lattice shows a chaotic contrast of the surface image.
(c) Field ion image of the ordered state of Fe25Pd50Au25 alloy. Fe and Au atoms provide contrast in the field ion image, Pd atoms do not provide contrast.
V.A. Ivchenko
Article
On the microstructure and tensile behaviour of nanostructured NiTi alloy produced by electroplastic rolling
Nanostructured NiTi and its tensile behaviour.
J. V. Tilak Kumar, S. Jayaprakasam, V. S. Senthil Kumar , K. A. Padmanabhan, A. Frolova, V. Stolyarov
Article
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
Article
Electroplastic effect and interaction of an electrical impulse with a conductor
The dependence of the vibration response of the conductor on the action of an electric pulse as an interference of damped oscillations of the acceleration value generated at the leading and trailing edges of the electric pulse when the duration of the Timp of the electric pulse changes.
O.B. Skvortsov, V.I. Stashenko, O.A. Troitsky
Article