Current issue

Regular issue 12 (1) 2022
Steady state isotropic optimal superplastic deformation in 175 materials systems of different classes studied can be represented by the equation 8 in the main text

On a unique constitutive equation for steady state isotropic optimal structural superplastic deformation in all classes of materials

Steady state isotropic optimal superplastic deformation in 175 materials systems of different classes studied can be represented by the equation 8 in the main text
K. R. Harisankar, S. Sripathi, K.A. Padmanabhan
PDF PDF  Article
Year: 2022 Volume: 12     Issue: 1 Pages: 5-14


The paper investigates the effect of long-term operation at a temperature of 515 °C on the structure and properties of steel grade 08Cr16Ni11Mo3. As a result of the study, it was found that during operation at a temperature of 515 °C for 195,000 hours in steel grade 08Cr16Ni11Mo3, the structure changes with the formation of secondary phases, initiated by the release of elements with limited solubility from the supersaturated solid solution. A change in the phase composition during heat aging leads to embrittlement of steel - a decrease in plasticity.

Study of the influence of long-term high-temperature operation on the structure and properties of austenitic chromium-nickel-molybdenum steel

The paper investigates the effect of long-term operation at a temperature of 515 °C on the structure and properties of steel grade 08Cr16Ni11Mo3. As a result of the study, it was found that during operation at a temperature of 515 °C for 195,000 hours in steel grade 08Cr16Ni11Mo3, the structure changes with the formation of secondary phases, initiated by the release of elements with limited solubility from the supersaturated solid solution. A change in the phase composition during heat aging leads to embrittlement of steel - a decrease in plasticity.
K.A. Okhapkin, A.S. Kudryavtsev
PDF PDF  Article
Year: 2022 Volume: 12     Issue: 1 Pages: 21-26
Journal section: Structure design and analysis




LPBF of multiple sieved powder of Co-28 wt.% Cr-6 wt.% Mo leads to the formation of samples with inclusions of Cr and Mo within the bulk.
Increasing the duration of annealing post-treatment leads to the initiation of diffusion processes, which, in its turn, leads to the gradual dissolution of Cr and Mo inclusiuons

Influence of thermal treatment duration on structure and phase composition of additive Co-Cr-Mo alloy samples

LPBF of multiple sieved powder of Co-28 wt.% Cr-6 wt.% Mo leads to the formation of samples with inclusions of Cr and Mo within the bulk. Increasing the duration of annealing post-treatment leads to the initiation of diffusion processes, which, in its turn, leads to the gradual dissolution of Cr and Mo inclusiuons
M.A. Khimich, E.A. Ibragimov, A.I. Tolmachev, V.V. Chebodaeva, P.V. Uvarkin, N.A. Saprykina, A.A. Saprykin, Y.P. Sharkeev
PDF PDF  Article
Year: 2022 Volume: 12     Issue: 1 Pages: 43-48
Journal section: Structure design and analysis

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
PDF PDF  Article
Year: 2022 Volume: 12     Issue: 1 Pages: 49-53

After rotary forging at 700°°C, the alloy manifests the best combination of the structural, mechanical, and functional characteristics. In this state, the long-length bar stock demonstrates a homogeneous grain structure with a certain fraction of a dynamically polygonized substructure of β-phase, a satisfactory strength (UTS=580 MPa), a low Young’s modulus (E=35 GPa), high difference between dislocation and phase yield strength (Δσ = 280 MPa), and a relatively large amount of superelastic recovery strain (εrSEmax=3.12%).

Effect of forging temperature on the structure, mechanical and functional properties of superelastic Ti-Zr-Nb bar stock for biomedical applications

After rotary forging at 700°°C, the alloy manifests the best combination of the structural, mechanical, and functional characteristics. In this state, the long-length bar stock demonstrates a homogeneous grain structure with a certain fraction of a dynamically polygonized substructure of β-phase, a satisfactory strength (UTS=580 MPa), a low Young’s modulus (E=35 GPa), high difference between dislocation and phase yield strength (Δσ = 280 MPa), and a relatively large amount of superelastic recovery strain (εrSEmax=3.12%).
K.E. Lukashevich, V.A. Sheremetyev, A.A. Kudryashova, M.A. Derkach, V.A. Andreev, S.P. Galkin, S.D. Prokoshkin, V. Brailovski
PDF PDF  Article
Year: 2022 Volume: 12     Issue: 1 Pages: 54-58




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
PDF PDF  Article
Year: 2022 Volume: 12     Issue: 1 Pages: 76-80