Volume 13, Issue 4s, December 2023

Special Issue. International Conference "Physics and Technology of Advanced Materials-2023": Selected Papers

Preface

    Move to the contents
The International Conference "Physics and Technology of Advanced Materials-2023” (PTAM-2023) was held in Ufa, Russia, from in October 2 to 6, 2023. The Conference gathered 193 researchers from different towns of Russia and other countries (Uzbekistan, India). The Conference was held in a combined face-to-face and online modes. In the live part, 57 oral and 42 poster reports were made and at online sessions 26 papers were presented. The PTAM 2023 Conference was organized for the second time by the Institute for Metals Superplasticity Problems of the Russian Academy of Sciences in cooperation with Ufa University of Science and Technology and Ufa State Petroleum Technical University.

In this Special Issue, selected papers reported at PTAM-2023 are published. All papers included here have passed the normal peer review and edition procedure accepted in the journal “Letters on Materials”. The Editorial Board expresses a gratitude to the authors presented their manuscripts and to the reviewers for a quick and careful analysis of the submitted papers.

Editor-in-Chief,

Radik R. Mulyukov
High-temperature annealing of low-activation chromium-manganese austenitic steel leads to discontinuous precipitation of dispersed M23C6 carbides along grain boundaries, micro- and nanotwin boundaries. At coherent twin boundaries, the growth of particles during annealing is limited by cross-sectional dimensions of the twin plates.

Microstructure and mechanical properties of low-activation austenitic steel after high-temperature annealing

High-temperature annealing of low-activation chromium-manganese austenitic steel leads to discontinuous precipitation of dispersed M23C6 carbides along grain boundaries, micro- and nanotwin boundaries. At coherent twin boundaries, the growth of particles during annealing is limited by cross-sectional dimensions of the twin plates.
I.Y. Litovchenko, S.A. Akkuzin, N.A. Polekhina, K.V. Spiridonova, A.V. Kim, V.V. Osipova, E.N. Moskvichev, V.M. Chernov
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 390-396
Journal section: Structure design and analysis
The distribution of microhardness (HV 0.5) and the average amount of γ-, α- and ε-martensite in a sample made of steel Fe-0.02C-18Cr-8Ni after SPDT (a) and the distribution of α-martensite under the ductile static fracture surface of steel after ECAP (b, c)

Effect of severe plastic deformation on martensitic transformations in a metastable austenitic steel

The distribution of microhardness (HV 0.5) and the average amount of γ-, α- and ε-martensite in a sample made of steel Fe-0.02C-18Cr-8Ni after SPDT (a) and the distribution of α-martensite under the ductile static fracture surface of steel after ECAP (b, c)
G.V. Klevtsov, R.Z. Valiev, N.A. Klevtsova, N.A. Enikeev, I.N. Pigaleva, M.M. Abramova, O.A. Frolova
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 397-402
Journal section: Structure design and analysis
The effect of multi-directional isothermal forging on the microstructure and mechanical properties of ferritic-martensitic steel EK-181 was studied. As a result, a submicrocrystalline fragmented structure with fine M23C6 particles was formed, which provides an increase in strength properties.

Influence of multi-directional isothermal forging on the microstructure and mechanical properties of low activation ferritic-martensitic steel for nuclear reactors

The effect of multi-directional isothermal forging on the microstructure and mechanical properties of ferritic-martensitic steel EK-181 was studied. As a result, a submicrocrystalline fragmented structure with fine M23C6 particles was formed, which provides an increase in strength properties.
V.V. Osipova, N.A. Polekhina, I.Y. Litovchenko, K.V. Spiridonova, V.M. Chernov, M.V. Leontieva-Smirnova
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 403-407
Journal section: Materials processing and applications
The influence of the rate of change in temperature and size of nickel nanoparticles on the features of the nanocrystalline structure formed during crystallization and devitrification was studied by the method of molecular dynamics

Molecular dynamics study of the formation of a nanocrystalline structure during crystallization and devitrification of nickel nanoparticles

The influence of the rate of change in temperature and size of nickel nanoparticles on the features of the nanocrystalline structure formed during crystallization and devitrification was studied by the method of molecular dynamics
G.M. Poletaev, Y.Y. Gafner, S.L. Gafner, A.V. Sannikov, I.V. Zorya
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 420-425
Journal section: Theory and computer simulations in materials science and condensed matter physics
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
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 426-430
Journal section: Mechanical and physical properties of materials
After 10 passes of friction stir processing (FSP) three phases are observed - the aluminum matrix, NiO and Al3Ni particles. It should be noted that there are no traces of NiO remaining inside the Al3Ni particles. Thus, an acceleration of the chemical reaction occurred between the 4th and 10th passes of friction stir processing (FSP), leading to the formation of a significantly larger quantity of Al3Ni and Al2O3 particles.

Growth of Al3Ni particles during friction stir processing of the AA6063+NiO composite

After 10 passes of friction stir processing (FSP) three phases are observed - the aluminum matrix, NiO and Al3Ni particles. It should be noted that there are no traces of NiO remaining inside the Al3Ni particles. Thus, an acceleration of the chemical reaction occurred between the 4th and 10th passes of friction stir processing (FSP), leading to the formation of a significantly larger quantity of Al3Ni and Al2O3 particles.
I.S. Sugonyako, D.B. Kabirova, N.F. Khayretdinov, R.F. Fazlyakhmetov, M.F. Imayev
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 431-437
Journal section: Materials processing and applications
Microhardness of the Cu-Al-Cu sample after accumulative HPT before and after annealing (left) and schematic representation of the effect of accumulative HPT and further annealing on the sample (right).

The effect of route and post-deformation annealing on the mechanical properties and structure of the Cu-Al composite produced by accumulative HPT

Microhardness of the Cu-Al-Cu sample after accumulative HPT before and after annealing (left) and schematic representation of the effect of accumulative HPT and further annealing on the sample (right).
V.N. Danilenko, N.Y. Parkhimovich, L.U. Kiekkuzhina, D.V. Gunderov
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 444-449
Journal section: Structure design and analysis
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
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 462-469
Journal section: Mechanical and physical properties of materials
The influence of warm multidirectional isothermal forging on the grain structure and mechanical properties of the high-nitrogen austenitic steel VNS-53-Sh has been studied. It has been shown that the average grain size was reduced to ~ 6 μm after forging compare to initial state due to the formation of small grains at the boundaries of the original grains and fragmentation of them. It promote an increase in strength properties.

Grain structure and mechanical properties of high-nitrogen austenitic steel VNS-53‑SH after warm multidirectional isothermal forging

The influence of warm multidirectional isothermal forging on the grain structure and mechanical properties of the high-nitrogen austenitic steel VNS-53-Sh has been studied. It has been shown that the average grain size was reduced to ~ 6 μm after forging compare to initial state due to the formation of small grains at the boundaries of the original grains and fragmentation of them. It promote an increase in strength properties.
A.V. Kim, S.A. Akkuzin, I.Yu. Litovchenko, E.N. Moskvichev, N.A. Polekhina, D.S. Kushnereva
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 470-474
Journal section: Structure design and analysis
Structural behavior and hardening of the high-strength aluminum alloy 1965 after isothermal rolling at the temperature of liquid nitrogen with reductions in the range of 30-70% was studied for two pre-quenched conditions - the homogenized ingot and further hot-forged billet. In spite of differences in the initial structure parameters, the structure transformations in both the alloy states under cryorolling were preferably associated with the formation and development of the dislocation-cellular structure of the matrix.

Effect of initial state on structuring, hardening and rollability of high-strength aluminum alloy 1965 in isothermal cryorolling

Structural behavior and hardening of the high-strength aluminum alloy 1965 after isothermal rolling at the temperature of liquid nitrogen with reductions in the range of 30-70% was studied for two pre-quenched conditions - the homogenized ingot and further hot-forged billet. In spite of differences in the initial structure parameters, the structure transformations in both the alloy states under cryorolling were preferably associated with the formation and development of the dislocation-cellular structure of the matrix.
M.V. Markushev, M.A. Akhmetshin, V.V. Tereshkin, S.V. Krymskiy, E.V. Avtokratova, O.S. Sitdikov
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 475-480
Journal section: Structure design and analysis
Morphological (SAXS) and electrochemical (CV, EIS) properties of nanostructured composites Au/MWCNT and MnxOy/MWCNT prepared by means of multiple layer-by-layer auto-reduction (HAuCl4 or KMnO4) were investigated, nanoparticles of fillers are formed in both channels and on external surface of the MWCNT. The maximum effect of increase in electric capacitance of the composites with 4 wt % Au and 5 wt.% MnxOy with respect to capacitance of MWCNT is 1.2 and 2.9, respectively, in the region of the low scan rates.

Morphology and electrochemical properties of composites based on multi-wall carbon nanotubes filled with gold and manganese oxides nanoparticles

Morphological (SAXS) and electrochemical (CV, EIS) properties of nanostructured composites Au/MWCNT and MnxOy/MWCNT prepared by means of multiple layer-by-layer auto-reduction (HAuCl4 or KMnO4) were investigated, nanoparticles of fillers are formed in both channels and on external surface of the MWCNT. The maximum effect of increase in electric capacitance of the composites with 4 wt % Au and 5 wt.% MnxOy with respect to capacitance of MWCNT is 1.2 and 2.9, respectively, in the region of the low scan rates.
Y.A. Zakharov, N.V. Ivanova, G.Y. Simenyuk, M.V. Lomakin, T.O. Sergina, E.V. Kachina, V.G. Dodonov
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 481-487
Journal section: Experimental methods in materials research
The powder EP741NP superalloy with the initial ultrafine-grained microstructure after superplastic deformation and a solid-state joint in combination of the EP741NP superalloy and a cast intermetallic VKNA-25 alloy.

Mechanical properties and weldability of powder EP741NP nickel-based superalloy with an ultrafine-grained mixed type microstructure

The powder EP741NP superalloy with the initial ultrafine-grained microstructure after superplastic deformation and a solid-state joint in combination of the EP741NP superalloy and a cast intermetallic VKNA-25 alloy.
E.V. Galieva, V.A. Valitov, E.Y. Klassman, A.A. Ganeev, R.R. Gabbasov, E.M. Stepukhov, I.I. Khafizov
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 493-498
Journal section: Structure design and analysis
The numerical investigation of the behaviour of a Cu-graphene composite under harmonic impact revealed that if the graphene component is subjected to harmonic driving, it becomes the predominant channel for energy transport due to its wider phonon spectrum and greater number of phonons

Nonlinear supratransmission effect in copper-graphene composite

The numerical investigation of the behaviour of a Cu-graphene composite under harmonic impact revealed that if the graphene component is subjected to harmonic driving, it becomes the predominant channel for energy transport due to its wider phonon spectrum and greater number of phonons
A.M. Kazakov, P.V. Zakharov, G.F. Korznikova, Y.V. Bebikhov, E.A. Korznikova
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 499-504
Journal section: Theory and computer simulations in materials science and condensed matter physics
The artificial aging did not result in any change in the AK12 alloy's microhardness, whereas T6 treatment led to a uniform increase in microhardness throughout all zones of the sample. There was no significant grain growth observed in the aluminum-based solid solution and silicon particles after these heat treatments.

Influence of heat treatment on microstructure and hardness of friction stir processed eutectic silumin

The artificial aging did not result in any change in the AK12 alloy's microhardness, whereas T6 treatment led to a uniform increase in microhardness throughout all zones of the sample. There was no significant grain growth observed in the aluminum-based solid solution and silicon particles after these heat treatments.
N.F. Khayretdinov, D.B. Kabirova, A.K. Valeeva, R.F. Fazlyakhmetov, M.F. Imayev
PDF PDF  Article
Year: 2023 Volume: 13     Issue: 4s Pages: 505-510
Journal section: Structure design and analysis