Archive - Электронный научный журнал "ТРУДЫ ВИАМ"

Articles

 


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1.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-3-15
УДК 669.017.165
Visik E.M., Koljadov E.V., Kuzmina N.A.
INFLUENCE OF DIRECTIONAL CRYSTALLIZATION PARAMETERS ON THE STRUCTURE OF THE INTERMETALLIC NICKEL ALLOY VIN4M-VI WHEN CASTING SINGLE-CRYSTAL BLANKS OF NOZZLE BLADES

The directions of the development of casting blocks for casting small-sized blanks of nozzle blades at the UVNK-9A installation and the influence of the conditions of the technological process of directed crystallization on the formation of the single-crystal structure of the intermetallic alloy VIN4M-VI of KGO [001] are considered. The results of X-ray diffraction and metallographic studies of blanks of nozzle blades made of nickel alloy VIN4M-VI are presented, confirming the possibility of obtaining a single-crystal structure in them KGO [001], and the results of testing this alloy in pilot and serial production.

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2.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-16-31
УДК 629.7.018.4
Fomina M.A., Kutyrev A.E., Yamschikov E.I., Vdovin A.I.
EXPERIENCE IN IMPACT RESEARCH OF CORROSION DAMAGE ON STRENGTH CHARACTERISTICS ALUMINUM ALLOYS USED IN THE AVIATION INDUSTRY

The influence of the degree of corrosion damage on the strength characteristics of aluminum alloy are considered. Methods for assessing corrosion damage, including pitting corrosion, and mathematical models for assessing the durability of aluminum alloys are considered. The methods used for this assessment have high errors. It is proposed to use the approach based on the creation of corrosion damages identical to those that occur after full-scale tests.

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3.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-32-40
УДК 544.122.2
Sidorov D.V., Kirilin A.D., Grunin А.А., Shavnev A.A.
STRUCTURE ISOMERIZATION OF SYSTEM «METHYLSILYLENE–SILAETHYLENE–SILYLCARBENE»

The article presents a theoretical study of the structure isomerization methylsilylene, silaethylene, silylcarbene. Calculation of the geometry dimensions in the researched isomers was performed non-empirical method according to theory of density functional, the second-order Meller–Plesset perturbation theory, coupled clusters. The calculation chemical reaction isomerization has shown the most likely a transitional state structure. We defined that silaethylene in singlet state has least energy.

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4.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-41-56
УДК 544.122.2
Gavrish A.V., Akhmadieva K.R., Shosheva A.L., Lavrin M.A.
THERMOSETTING OLIGOIMIDES WITH PHENYLETHYNYL REACTIVE GROUPS

A review of imide oligomers with phenylethynyl (PE) groups is presented. Physico-chemical properties of different oligomers are disclosed, new series of imide oligomers with phenylethynyl groups are described, thermal stability, glass transition temperatures (Tg) and curing temperatures are analyzed. The effect of molecular weight of PETI-5 oligomer on various properties is also presented.

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5.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-57-68
УДК 629.7.06
Veshkin E.A, Barannikov A.A., Makrushin K.V., Zhelezina G.F.
FEATURES OF THE MANUFACTURING OF CURVED PARTS OF A COMPLEX CONTOUR MADE OF POLYMER COMPOSITE MATERIALS

The basic principles of the technological process of manufacturing highly loaded parts made of polymer composite materials with a complex curved aerodynamic contour using the method of multifragment forming are shown. As an example, the technological process of manufacturing parts of a dust-proof device of a helicopter gas turbine engine is considered. The methods of calculating the main characteristics of prepregs used for laying out parts, schemes for manufacturing these parts and the results of the work done are given.

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6.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-69-78
УДК 661.183.6
Lebedeva Yu.E., Shchegoleva N.E., Turchenko M.V., Volobueva T.M.
MODIFYING ADDITIVES INFLUENCE ON THE PROPERTIES OF SiO2–B2O3 SYSTEM MATERIALS PRODUCED BY SOL-GEL METHOD

The work revealed the features of the influence of carbon-containing components on the synthesis of the borosilicate system by the sol-gel method. The influence of the nature (coal, starch, sugar) and the amount of the carbon-containing component on the gelation time, the behavior of the gel during the drying process and the retention of carbon in it were studied. The gelation time was 20; 312 and 2 hours for the sols of the SiO2–B2O3 system with starch, sugar and coal with starch, respectively. The gel with finely divided coal and dissolved in water and acid starch contained a maximal amount of carbon (24 %).

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7.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-79-89
УДК 66.017:666.7
Turchenko M.V., Lebedeva Yu.E., Belyachenkov I.O., Prokofiev V.A.
OBTAINING OF CERAMIC MATERIALS BY STEREOLITHOGRAPHY METHOD

The main advantages of additive technologies (AT) include the possibility of obtaining parts of a complex configuration of the external and internal structure, as well as the material utilization factor, which is close to unity. For example, traditional methods for producing products from ceramic materials cannot compete with AT in this parameter. In this review, the principle of the stereolithography method is considered, works are presented, the purpose of which is to obtain ceramic products of varying complexity by stereolithography, a description of the methods for obtaining ceramic paste, from which products are obtained.

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8.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-90-100
УДК 669.058
Aleksandrov D.A., Doronin O.N., Juravleva P.L., Benklyan A.S.
THE RESEARCH OF EROSION-CORROSION-RESISTANT COATINGS FOR PROTECTION OF TITANIUM IMPELLERS FOR HELICOPTER GAS-TURBINE ENGINE

The erosion-corrosion-resistant coatings applicable to protect impellers of a gas-turbine engine compressor made of titanium alloys are studied. The properties of promising systems of ion-plasma coatings are studied: (TiN–CrN), TiN/Ti/TiN, (TiN–Ti–Al–Cr–N)–TiN. Erosion and corrosion resistance tests were carried out, residual stresses in the coating were investigated, high-cycle fatigue tests and metallographic studies were carried out. The influence of the thickness and design of coatings on the erosion and corrosion resistance of titanium alloys, the endurance limit has been established.

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9.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-101-109
УДК 629.7.023.222
Kondrashov E.K., Kozlova A.A.
PAINT COATINGS WITH SPECIAL OPTICAL PROPERTIES

The paint and varnish materials and coverings with special optical properties (camouflage, light-reflective, heatreflecting, heat-radiating, fluorescent, instrument) for some products of aviation and aerospace engineering are presented. Main characteristics of the paint coatings applied to giving of the painted surface of the flight vehicle and its parts, special optical properties for increase of efficiency of its work are given in difficult conditions.

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10.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-110-121
УДК 629.7.023.222
Kuznetsova V.A., Ponomarenko S.A., Zheleznyak V.G., Timoshina E.A.
INFLUENCE OF SOLVENTS IN THE COMPOSITION OF THE PAINT AND VARNISH MATERIAL ON THE APPEARANCE AND PROPERTIES OF PAINT AND VARNISH COATINGS

The influence of solvents in the composition of the paintwork material on the properties of coatings was studied. For research, paints and varnishes based on polyurethane film-forming agents cured with an isocyanate hardener were selected. Solvent R-189 from various manufacturers was used to dilute paints and varnishes. Using the method of gas chromatography-mass spectrometry, the qualitative and quantitative composition of the used solventsR-189 was determined. It has been established that the studied solvents from various manufacturers do not comply with TU 6-10-1725–78, and a significant effect of the composition of the R-189 solvent on the properties of the obtained coatings has also been shown.

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11.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-122-131
УДК 543.51: 669.1
Alekseev A.V., Yakimovitch P.V.
ANALYSIS OF HIGH PURITY NICKEL BY GLOW DISCHARGE HIGH RESOLUTION MASS SPECTROMETRY

The impurities of 68 elements in high (5N) purity nickel were determined by the method of high-resolution glow discharge mass spectrometry. Sample preparation for analysis is described. To achieve maximum analytical signals from all the required elements, the appropriate equipment settings were selected. Spectral interferences are eliminated by applying high resolution. Relative sensitivity coefficients were calculated for all analyzed elements using a standard nickel sample.

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12.
dx.doi.org/ 10.18577/2307-6046-2023-0-9-132-144
УДК 620.1
Lednev I.S., Khodakova E.A.
PROSPECTS FOR THE DEVELOPMENT OF MAGNETIC PARTICLE INSPECTION OF AIRCRAFT PARTS

The article discusses the main directions of development of methods of non-destructive testing, and in particular magnetic powder non-destructive testing of aircraft parts. The possibilities of magnetic powder control and the reasons for its development are given. with their help, discontinuities, depending on the purpose of control. The development of control automation and the use of neural networks, as well as mathematical modeling of processes in IPC, are identified as the main promising areas for the development of non-destructive magnetic particle control. The experience of the work carried out in these areas is given.

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13.
CONTENТS

Heat-resistant alloys and steels

 

Visik E.M., Kolyadov E.V., Kuzmina N.A. Influence of directional crystallization parameters on the structure of the intermetallic nickel alloy VIN4M-VI when casting single-crystal blanks of nozzle blades

 

 

Light-metal alloys

 

Fomina M.A., Kutyrev A.E., Yamschikov E.I., Vdovin A.I. Experience in impact research of corrosion damage on strength characteristics aluminum alloys used in the aviation industry

 

 

Polymer materials

 

Sidorov D.V., Kirilin A.D., Grunin А.А., Schavnev А.А.Structure isomerization of system «methylsilylene–silaethylene–silylcarbene»

 

Gavrish A.V., Akhmadieva K.R., Shosheva A.L., Lavrin M.A. Thermosetting oligoimides with phenylethynyl reactive groups

 

 

Composite materials

 

Veshkin E.A., Barannikov A.A., Makrushin K.V., Zhelezina G.F. Features of the manufacturing of curved parts of a complex contour made of polymer composite materials

 

 

Lebedeva Yu.E., Shchegoleva N.E., Turchen-ko M.V., Volobueva T.M. Modifying additives influence on the properties of SiO2–B2O3 system materials produced by sol-gel method

 

Turchenko M.V., Lebedeva Yu.E., Belyachen-kov I.O., Prokofiev V.A. Obtaining of ceramic materials by stereolithography method

 

Protective and functional

coatings

 

Aleksandrov D.A., Doronin O.N., Zhuravleva P.L., Benklyan A.S. The research of erosion-corrosion-resistant coatings for protection of titanium impellers for helicopter gas-turbine engine

 

Kondrashov E.K., Kozlova A.A. Paint coatings with special optical properties

 

 

Kuznetsova V.A., Ponomarenko S.A., Zhelez-nyak V.G., Timoshina E.A. Influence of solvents in the composition of the paint and varnish material on the appearance and properties of paint and varnish coatings

 

 

Material tests

 

Alekseev A.V., Yakimovich P.V. Analysis of high purity nickel by glow discharge high resolution mass spectrometry

 

 

Lednev I.S., Khodakova E.A. Prospects for the development of magnetic particle inspection of aircraft parts

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