Archive - Электронный научный журнал "ТРУДЫ ВИАМ"

Articles

 


№1 | №2 | №3 | №4 | №5 | №6 | №7





1.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-3-17
УДК 669.715:669.018.62
Benarieb I., Panteleev M.D., Oglodkov M.S., Sbitneva S.V., Pahomkin S.I.
THE EFFECT OF HEAT TREATMENT ON THE STRUCTURE AND MECHANICAL PROPERTIES OF JOINTS, PRODUCED BY ELECTRON BEAM WELDING OF EXTRUSIONS FROM ALUMINIUM-LITHIUM ALLOY V-1469

This paper presents the results of the study of the features of microstructure formation and changes in mechanical properties after heat treatment of welded joints, obtained by electron beam welding of extrusions from high-strength alloy V-1469 of Al–Cu–Li system. Phase transformations and nature of precipitation in different zones of the welded joint depending on heat treatment were studied by differential scanning calorimetry, transmission electron microscopy and thermodynamic simulation. It has been shown that the heat treatment of welded joints (quenching + aging) significantly increases the level of strength of the material.

Read in Russian

2.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-18-28
УДК 669.721.5
Leonov A.A., Zavarzin S.V., Trofimov N.V.
ON SOME FEATURES OF THE INFLUENCE OF THE COMPOSITION OF THE MAGNESIUM ANODE ON ITS ELECTROCHEMICAL BEHAVIOR IN RELATION TO MAGNESIUM-ION BATTERIES

The influence of the composition of the anode made of various casting magnesium alloys on its electrochemical behavior in a solution of 3,5% NaClby galvanostatic electrolysis and electrochemical impedance spectroscopy has been studied. It has been established that the use of rare earth elements (REE) as alloying elements has a beneficial effect on discharge characteristics, which allows increasing the anode efficiency and discharge capacity of the VML26 alloy of the system Mg–REE–Zr compared to the Mg–Al–Zn alloy ML5p.ch. by 15 and 7 %, respectively.

Read in Russian

3.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-29-41
УДК 621.763
Senenko S.A., Bogachev I.A., Shoshev F.L.
EFFECT OF THE FRACTIONAL COMPOSITION OF THE METAL-POWDER COMPOSITION OF THE VT6 ALLOY ON THE SURFACE ROUGHNESS, STRUCTURE AND MECHANICAL PROPERTIES OF THE PRINTED MATERIAL OBTAINED BY SELECTIVE ELECTRON BEAM MELTING

The technological properties of metal-powder compositions of VT6 alloy of different fractional composition are investigated. Synthesized samples were obtained by selective electron beam melting from metal-powder compositions of various fractions according to the standard parameters. The structure and surface roughness of the printed samples were studied. The widest possible range of fractions of the metal powder composition suitable for use in the process of selective laser electron beam melting without reducing the characteristics of the printed material has been determined.

Read in Russian

4.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-42-50
УДК 621.792.053
Isaev A.Yu., Rubtsova E.V., Lukina N.F.
PROPERTIES AND PURPOSE OF FILM ADHESIVES (CONSTRUCTIONAL AND FOAMING) WITH LOWERED COMBUSTIBILITY

Theresults of research of the properties of epoxy film adhesiveswith lowered combustibility and heat resistance up to 120 °C – VK-108 and VKV-28 are presented. VK-108 structural adhesive is intended for gluing parts and units from metal materials and polymeric composite materials, including honeycomb sandwich constructions.  VKV-28 foaming adhesive is designed to connect the cellular fillers with each other and with the frame elements in honeycomb sandwich  made from aluminum alloys and polymeric composite materials. Аdhesivesare self-extinguishing and meet the requirements of AP-25 (Appendix F, Рart I).

Read in Russian

5.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-51-60
УДК 621.924.93
Donetskiy K.I., Ablyaz T.R., Shlykov E.S., Osinnikov I.V., Blokhin V.B., Muratov K.R.
STUDY OF THE INFLUENCE OF THE ELECTRICAL DISCHARGE MACHINING PROCESS ON THE STRUCTURE OF POLYMER COMPOSITE MATERIAL VKU-29

Processing of polymer composite materials with minimal defect formation is an important prerequisite for their long-term operation. Materials produced by the technology of copy-piercing electrical discharge machining (EDM) under consideration are also characterized by characteristic defects. The influence of the EDM modes, the applied conductive layer and  the electrode-tool material on the structure of the surface layer of structural carbon fiber reinforced plastic VKU-29 was studied. Technological parameters of EDM were obtained, ensuring the quality and efficiency of polymer composite materials, taking into account the minimal number of structural defects.

Read in Russian

6.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-61-68
УДК 629.7.023.222
Zverevich Yu.K., Krechetov D.D., Zheleznyak V.G.
INVESTIGATION OF THE EFFECT OF MODIFIERS ON THE ELECTRICAL CONDUCTIVITY OF THE MODEL COMPOSITION BASED ON AN EPOXY OLIGOMER

The paper presents the results of the influence of various combinations of electrically conductive modifiers on the electrical conductivity of model compositions based on an epoxy oligomer cured with an amine type hardener. The effect of fillers on the electrical conductivity of model compositions is investigated by the method of determining the specific volumetric electrical resistance at constant voltage. The analysis of the obtained results was performed, which allowed us to establish the relationship between the composition of the model compositions and their electrical conductivity.

Read in Russian

7.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-69-79
УДК 669.046.516.2
Buzenkov A.V., Burkanov M.V., Valeev R.A., Piskorsky V.P.
INFLUENCE OF ALLOYING ELEMENTS AND PRODUCTION TECHNOLOGY ON THE PROPERTIES OF SINTERED MAGNETS Pr(Nd)–Dy(M)–Fe–Co–B (M: Tb, Ce, Sm)

The effect of alloying elements (Tb, Ce, Sm) on the properties of sintered magnets Pr(Nd)–Dy(M)–Fe–Co–B(М: Tb, Ce, Sm) as well as sintering temperature, grinding time and various heat treatment modes on the main magnetic characteristics and phase composition of magnets is investigated. It is shown that heat treatment does not significantly affect the magnetic properties. It was found that the admixture of samarium negatively affects the magnetic characteristics of materials. It has been established that the most effective materials are based on praseodymium (without admixture of neodymium).

Read in Russian

8.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-80-91
УДК 620.178.3
Monakhov A.D., Yakovlev N.O.
APPLICATION OF THE DEEP LEARNING METHOD IN STUDYING CRACK RESISTANCE CHARACTERISTICS

The paper presents an algorithm for determining the length and position of a fatigue crack, based on the use of a three-dimensional convolutional neural network when testing for fatigue crack growth rate. An algorithm for calibrating a video recording system using reference marks in the form of matrix bar codes is proposed. The results of using the algorithm were compared with standard tests. Thus, the kinetic diagram of destruction obtained using a neural network model is characterized by a larger volume of observations, as well as a smaller value of the variance of the approximation error of the measurement results.

Read in Russian

9.
dx.doi.org/ 10.18577/2307-6046-2024-0-6-92-104
УДК 620.193.2
Panchenko Yu.M., Marshakov A.I., Nenasheva T.A., Kutyrev A.E., Fomina M.A., Vdovin A.I.
PREDICTIONS OF FIRST-YEAR CORROSION LOSSES OF STRUCTURAL METALS DEPENDING ON THE ORIENTATION OF SAMPLES AT DIFFERENT DISTANCES FROM THE SEASHORE

An anomalously high rate of chloride deposition observed in Gelendzhik in February 2023 during the annual corrosion tests was investigated. An estimation of the threshold value of the chloride deposition rate on samplers corresponding to the rate of chloride deposition directly on the surface of metal samples is given. The correction of calculation of the average annual rate of chloride deposition ([Cl]) under anomalously high salinity of the atmosphere is proposed. Based on the average annual climatic parameters and [Cl] by dose-response functions the forecast of first-year corrosion losses of metals is made.

Read in Russian

10.
CONTENТS

Light-metal alloys

 

Benarieb I., Panteleev M.D., Oglodkov M.S., Sbitneva S.V., Pakhomkin S.I. The effect of heat treatment on the  structure and mechanical properties of joints, produced by electron beam welding of extrusions from aluminium-lithium alloy V-1469

 

 

Leonov А.А., Zavarzin S.V., Trofimov N.V. On some features of the influence of the composition of the magnesium anode on its electrochemical behavior in relation to magnesium-ion batteries

 

Senenko S.A., Bogachev I.A., Shoshev F.L. Effect of the fractional composition of the metal-powder composition of the VT6 alloy on the surface roughness, structure and mechanical properties of the printed material obtained by selective electron beam melting

 

 

Polymer materials

 

Isaev A.Yu., Rubcova E.V., Lukina N.F. Properties and purpose of film adhesives (constructional and foaming) with lowered combustibility

 

Composite materials

 

Donetskiy K.I., Ablyaz T.R., Shlykov E.S., Osinnikov I.V., Blokhin V.B., Muratov K.R. Study of the influence of the electrical discharge machining process on the structure of polymer composite material VKU-29

 

Protective and functional

coatings

 

Zverevich Yu.K., Krechetov D.D., Zhelez-nyak V.G. Investigation of the effect of modifiers on the electrical conductivity of the model composition based on an epoxy oligomer

 

 

Material tests

 

Buzenkov A.V., Burkanov M.V., Valeev R.A., Piskorsky V.P. Influence of alloying elements and production technology on the properties of sintered magnets Pr(Nd)–Dy(M)–Fe–Co–B (M: Tb, Ce, Sm)

 

Monakhov A.D., Yakovlev N.O. Application of the deep learning method in studying crack resistance characteristics

 

Panchenko Yu.M., Marshakov A.I., Nenasheva T.A., Kutyrev A.E., Fomina M.A., Vdovin A.I. Predictions of first-year corrosion losses of structural metals depending on the orientation of samples at different distances from the seashore

Read in Russian