Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-3-14
УДК 669.725
Mosolov A.N., Sevalnev G.S., Krylov S.А., Skugorev A.V., Chirkov I.A.
STUDY OF THE STRUCTURE AND PROPERTIES OF BERYLLIUM-CONTAINING STEEL VNS32-VI

The structure, hardness, and tribotechnical characteristics of beryllium-containing steel VNS32-VI after hardening heat treatment have been studied. Metallographic analysis made it possible to establish that the structure of VNS32-VI consists of martensite, δ-ferrite and strengthening phases: NiBe, Cr23C6 и (Nb, Ti)C2. Based on the results of studies of tribotechnical characteristics, it was found that, compared with bearing steel 95Kh18-Sh, the wear rate of VNS32-VI steel by 15–20 % less when tested under conditions of dry sliding friction in a pair of friction with steel of the martensitic class ShKh15-SHD.

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2.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-15-25
УДК 691.666.1-9
Veshkin E.A, Istyagin S.E., Kirilin S.G., Semenychev V.V.
ACOUSTIC EMISSION CHARACTERISTICS IN DEFORMABLE FIBERGLASS SAMPLES WITH DIFFERENT CURING MODES

Samples of 1.6 mm thick fiberglass plastic sheet with different matrix curing modes were loaded in the elastic region according to the cantilever bending scheme. Both extreme and average values of frequencies and amplitudes of emission signals were recorded, besides, the duration of acoustic emission signals was recorded too. The criteria for evaluating the degree of matrix curing were the value of its microhardness. The acoustic emission signals recorded on various samples were analyzed with the matrix microhardness values taken into account, after which the corresponding dependences were plotted.

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3.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-26-40
УДК 678.8
Barannikov A.A., Sudyin Yu.I., Veshkin E.A, Satdinov R.A.
DETERMINATION OF THE PERMISSIBLE STORAGE TIME OF POLYMERIC COMPOSITE MATERIALS AFTER SURFACE TREATMENT WITH ATMOSPHERIC PRESSURE PLASMA BEFORE BONDING

The article notes the results of a study to determine the permissible storage time interval between the surface treatment of polymer composite materials based on adhesive prepregs by atmospheric pressure plasma and the bonding process. It was found that this time interval is no more than 6 months. At the same time, the surface of VPS-53K fiberglass and VKU-30K.UMT49 carbon fiber remains hydrophilic. Morphological changes are of a similar nature, both on the day of surface treatment of both materials, and after 1, 3 and 6 months of storage. Free surface energy and work of adhesion also remain at the proper high level. It was found that with an increase in the time interval between the APP treatment and the gluing process, a decrease in the strength of the glued joint is observed.

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4.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-41-52
УДК 678.8
Starkov A.I., Kutsevich K.E., Tyumeneva T.Y., Petrova A.P.
LOW-COMBUSTIBILITY ADHESIVE PREPREGS DESIGNED FOR THE MANUFACTURE OF INTEGRAL AND THREE-LAYER HONEYCOMB STRUCTURES AIRCRAFT TECHNOLOGY

The paper considers the application of adhesive prepregs with reduced flammability for the manufacture of aircraft floor panels. The effect of different types of flame retardants is shown, properties of adhesive binder VSK-14-6 with reduced flammability, adhesive prepregs on its basis and PCM with reduced flammability with different types of fillers ‒ fiberglass VPS-68 and carbon fiber plastic BCU-59 are given. Data on physical and mechanical properties of samples of three-layered honeycomb floor panels with cladding made of adhesive carbon and glass-reinforced plastics are presented. A comparative weight estimation with the existing floor panels is given Il-114, Il-96, Tu-204, Tu-214 products.

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5.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-53-63
УДК 621.763
Slavin A.V., Demidov A.A., Kosarina E.I., Suvorov P.V.
DEFINITION OF FACTORS OF WEAKENING OF X-RAY EMISSION WITH THE BROAD RANGE OF ENERGY POLYMERIC COMPOSITE MATERIAL

Values of linear factors of weakening of radiation by polymeric composite material depending on anode voltage on x-ray tube are experimentally established. Optimum verification regimes are defined when using as the converter of the radiation image in optical film and digital detector systems. By rated way it is established that when using digital detector systems anode voltage has to be higher, than at film radiography. The reason is that digital detector systems are devices with high level of intrinsic noise.

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6.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-64-73
УДК 631.437.8
Dvoretskaya E.V., Koplak O.V., Korolev D.V., Valeev R.A., Sidorov V.L., Piskorsky V.P., Morgunov R.B.
INFLUENCE OF MODE OF LOCAL LASER ANNEALING ON THE DOMAIN STRUCTURE IN MICROWIRES PrDyFeCoB

. With the help of continuous IR laser exposure, periodic magnetically modulated structures were created from amorphous microwires. Local laser annealing leads to the formation of regions of nanocrystalline phases 2-14-1, 1-4-1, 2-1 alternating with amorphous regions, thereby creating a pattern on the sample surface with a given magnetization distribution. In amorphous samples without laser irradiation, chaotic domains are observed, disappearing after two hours of annealing at 900 °C. In the samples profiled by a «fast» laser, local annealing leads to further transformation of phases only in the very center of the laser «notches», which is expressed in a change in the slope of the profile line near the domain boundary.

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7.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-74-86
УДК 666.3
Zhitnyuk S.V., Medvedev P.N., Sorokin O.Ju., Kachaev A.A.
FORMATION OF CRYSTALLOGRAPHIC TEXTURE IN POLYCRYCTALLINE CERAMICS AS A WAY TO ENHANCE PROPERTIES (review)

Considers the main achievements in the field of obtaining ceramic materials with a predominant crystallographic orientation of grains. It is shown that ceramics, which is characterized by the presence of a crystallographic texture, has increased properties in specific directions in comparison with non-textural materials. The development of fundamental research aimed at identifying the processes of texture formation contributes to the obtaining of ceramics with adjustable properties, which are in demand in many areas of industry

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8.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-87-95
УДК 678.747.2
Mishkin S.I.
APPLICATION OF CARBON FIBER PLASTICS IN CONSTRUCTIONS OF PILOTLESS DEVICES (review)

The overview on application of carbon fiber plastics in different constructions of pilotless devices is carried out. The main requirements to constructions, such as rigidity, durability, shock resistance, cost, etc. are provided. The analysis of scientific publications on advantages of application of carbon fiber plastics is provided in tail plumage, wings, the body and blades of pilotless devices screws. Are given the recommendation about application developed in Research Center Kurchatovsky institut – VIAM of carbon fiber plastics in constructive parts of pilotless devices.

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9.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-96-111
УДК 629.7.023.222
Kuznetsova V.A., Silaeva A.A., Zheleznyak V.G., Marchenko S.A.
MODIFICATION OF EPOXY FILM-FORMING AND THE HARDENERS FOR COATINGS (review)

In this work the analysis of experience of application of different approaches for achievement of necessary characteristics of coatings on the basis of epoxy film-forming at the expense of component modification of film-forming system is carried out. Ways of modification of hardeners for epoxy film-forming and epoxy resins are considered, influence of modifying agents on properties of coatings is described. The great attention is given in particular to amine hardeners, as to the most widespread hardeners of epoxies. Among modifiers of epoxy oligomers for receiving coatings uretan-containing, organic silicon oligomer products and rubbers are allocated.

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10.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-112-122
УДК 548.4
Zaysev D.V., Medvedev P.N., Lukinа E.A.
SiGe STRUCTURE INVESTIGATION USING METHODS OF X-RAY DIFFRACTION AND TRANSMISSION ELECTRON MICROSCOPY

The structure of the SiGe material used to create memristive structures has been studied by x-ray diffractometry and transmission electron microscopy. The phase composition of the material has been determined. Revealed the inhomogeneity of the SiGe solid solution. The lattice periods, the degree of lattice microstrain, and the volume fractions of the solid solution phases are calculated. Using transmission electron microscopy, the following have been investigated: grain structure, distribution of phases and defects in the volume of grains. The defects of the crystal lattice have been investigated, and the character of the inhomogeneity of the SiGe solid solution has been refined using local x-ray microanalysis.

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11.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-123-137
УДК 620.1:669.245
Gorbovets M.A., Khodinev I.A., Karashaev M.M., Ryzhkov P.V.
LOW CYCLE DWELL FATIGUE TESTING OF HEAT RESISTANT METALLIC MATERIALS (review)

A review of the methods for testing dwell low-cycle fatigue is carried out and the results of tests of nickel heat-resistant alloys and steels are presented. The description of models for calculating damage in the interaction of fatigue and creep is presented. The requirements for specimens, equipment and test results for metallic materials are analyzed. The fractographic features of fracture due to high-temperature dwell fatigue of heat-resistant nickel alloys and steels are considered.

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12.
dx.doi.org/ 10.18577/2307-6046-2022-0-5-138-146
УДК 621.833: 621.852
Laptev A.B., Zakirova L.I., Zagorskikh O.A., Pavlov M.R., Gorbovets M.A.
METHODS OF INVESTIGATION OF THE PROCESSES OF CORROSION-MECHANICAL DESTRUCTION AND HYDROGENATION OF METALS (review). Part 2. Formation of passive films and hydrogen sulfide cracking of steels

Considers the main stages of the process of formation of protective passive films on steel in a hydrogen sulfide-containing environment and the destruction of metal materials under the simultaneous influence of a corrosive environment and mechanical loads. The main theories and practical results of determining changes in the mechanical characteristics of steel under the influence of a corrosive environment and mechanical loads are presented. As the main criteria for corrosion destruction of materials taken values relative narrowing, relative elongation, and the strength limit during slow tension.

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13.
CONTENТS

Heat-resistant alloys and steels

 

Mosolov A.N., Sevalnev G.S., Krylov S.A., Skugorev A.V., Chirkov I.A. Study of the structure and properties of beryllium-containing steel VNS32-VI

 

Composite materials

 

Veshkin E.A., Istyagin S.E., Kirilin S.G., Semenychev V.V. Acoustic emission characteristics in deformable fiberglass samples with different curing modes

 

 

Barannikov A.A., Sudyin Yu.I., Veshkin E.A., Satdinov R.A. Determination of the permissible storage time of polymeric composite materials after surface treatment with atmospheric pressure plasma before bonding

 

 

Starkov A.I., Kutsevich K.E., Tyumeneva T.Yu., Petrova A.P. Low-combustibility adhesive prepregs designed for the manufacture of integral and three-layer honeycomb structures aircraft technology

 

 

Slavin A.V., Demidov A.A., Kosarina E.I., Suvorov P.V. Definition of factors of weakening of x-ray emission with the broad range of energy polymeric composite material

 

 

Dvoretskaya E.V., Koplak O.V., Korolev D.V., Valeev R.A., Sidorov V.L., Piskorsky V.P., Morgunov R.B. Influence of mode of local laser annealing on the domain structure in microwires PrDyFeCoB

Zhitnyuk S.V., Medvedev P.N., Sorokin O.Yu., Kachaev A.A. Formation of crystallographic texture in polycryctalline ceramics as a way to enhance properties (review)

 

 

Mishkin S.I. Application of carbon fiber plastics in constructions of pilotless devices (review)

 

Protective and functional

coatings

 

Kuznetsova V.A., Silaeva A.A., Zheleznyak V.G., Marchenko S.A. Modification of epoxy film-forming and the hardeners for coatings (review)

 

 

Material tests

 

Zaitsev D.V., Medvedev P.N., Lukina E.A.
SiGe structure investigation using me-thods of x-ray diffraction  and transmission electron microscopy

 

 

Gorbovets M.A., Hodinev I.A., Karashaev M.M., Ryzhkov P.V. Low cycle dwell fatigue testing of heat resistant metallic materials (review)

 

 

 

Laptev A.B., Zakirova L.I., Zagorskikh O.A., Pavlov M.R., Gorbovets M.A. Methods of investigation of the processes of corrosion-mechanical destruction and hydrogenation of metals (review). Part 2. Formation
of passive films and hydrogen sulfide cracking of steels

 

Conferences of

NRC «Kurchatov Institute» – VIAM

 

The solution of the III All-Russian Scientific and Technical Conference «Modern achievements in the field of development of advanced light alloys and coatings for aviation and space engineering», devoted to the Day of the astronautics

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