Articles
The results of experimental studies of short-term strength, long-term strength, multi-cycle fatigue and low-cycle fatigue of the castable corrosion-resistant nickel-based superalloy VZhL23 for turbine blades of GTI and GTE are presented.
Comparative analysis of the obtained values of long-term strength, multi-cycle fatigue and low-cycle fatigue of VZhL23 with the most heat-resistant foreign alloy IN-792 is carried out. It has been established that according to the set of mechanical properties VZhL23 is not inferior to IN-792.
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The main results of the research work carried out at the NRC "Kurchatov Institute" – VIAM in the period from 2015 to the present in the field of creating new materials for casting processes of nickel superalloys are considered. Serial production and supply of a number of materials to machine-building enterprises has been established. A promising task is the organization of low-tonnage production of blades for power turbine installations in order to solve the problem of import substitution and expansion of domestic production.
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. Presents the results of a study of the structure and mechanical properties of semi-finished products from the VT22M alloy after various modes of heat treatment with heating in the β-region. The regimes differed in the rate of cooling from the β-region and the presence of intermediate exposures. The study of mechanical properties in tension, impact strength and fracture toughness was carried out, the analysis of macrostructure and microstructure was carried out. After testing for fracture toughness, fractographic studies were performed to assess the nature of the fracture of the samples. The effect of heat treatment modes in the β-region on the structure and mechanical properties of semi-finished products from the VT22M alloy is shown.
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Рroperties and structure of forgings made of titanium alloy VT3-1, obtained by isothermal deformation under the conditions of the National Research Center «Kurchatov Institute» – VIAM presented in present paper. The draft was carried out according to the scheme of blades with a degree of deformation of 60 % and according to the scheme of disks with a degree of deformation of 80 %. The forgings were subjected to low-temperature, isothermal and double annealing. It has been investigated that the VT3-1 alloy has a high technological plasticity in the temperature range below the polymorphic transformation limit. Stampings show the required level of properties when deformed in the (α + β)-area.
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The review of the released epoxybismaleimide materials of various scopes is provided in the real work on the basis of the analysis of domestic and foreign patent and scientific and technical literature: binding, adhesives. The physical and thermomechanical properties of polymer matrices of epoxybismaleimide resins and adhesives are presented. Modification of the epoxy polymer matrix with bismaleimides increases the heat resistance, strength, and crack resistance of polymer composite materials (PCMs) based on them.
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23. Modified epoxy resin film for RFI molding process and preparation method thereof: pat. 101735573 CN; appl. 12.03.09; publ. 30.05.12.
24. Heat-resistant epoxy binder for the manufacture of products by pressure impregnation: pat. 2590563 Rus. Federation; appl. 23.04.15; publ. 10.07.16.
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26. Composition of epoxybismaleimide binder for prepregs (options), method for producing epoxybismaleimide binder (options), prepreg and product: pat. 2335514 Rus. Federation; appl. 27.12.06; publ. 10.10.08.
27. Composition of epoxybismaleimide binder for prepregs, prepreg and product: pat. 2427598 Rus. Federation; appl. 29.10.09; publ. 10.05.11.
28. Composition of epoxybismaleimide resin and method for its production: pat. 2587169 Rus. Federation; appl. 15.12.14; publ. 20.06.16.
29. Mosiyuk V.N., Vorvul S.V., Tomchani O.V. Differential vacuum molding as an advanced technology of vacuum molding. Aviacionnye materialy i tehnologii, 2017, no. 4 (49), pp. 37–41. DOI: 10.18577/2071-9140-2017-0-4-37-41.
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35. Epoxy adhesive: pat. 25202479 Rus. Federation; appl. 10.12.12; publ. 27.06.14.
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37. LOCTITE EA 9673 AERO Epoxy Film Adhesive (known as Hysol EA 9673). Available at: http://aero-consultants.co.uk/uploads/article2398/LOCTITE%20EA%209673%20AERO.PDF (accessed: May 18, 2023).
38. Adhesive Composition, Laminate, and Adhesive Sheet: pat. 2020-012026 A; appl. 13.07.18; publ. 23.01.20.
This paper provides an overview of the scientific and technical literature on the use of molten epoxy binders for the manufacture of semi-pregs processed by vacuum bag only for the manufacture of large-sized products from polymer composite materials for structural purposes. The comparison of porosity values of materials obtained by vacuum bag only of semi-pregs and prepregs is given. The main necessary technological requirements for epoxy binders for the production of semi-pregs are listed, as well as technologies used in industry for the manufacture of semi-pregs.
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3. Kablov E.N., Startsev V.O. Systematical analysis of the climatics influence on mechanical properties of the polymer composite materials based on domestic and foreign sources (review).
Aviacionnye materialy i tehnologii, 2018, no. 2 (51), pp. 47–58. DOI: 10.18577/2071-9140-2018-0-2-47-58.
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38. Prepreg for manufacturing composite materials: pat. US 10016966 B2; appl. 17.01.13; publ. 10.07.18.
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40. Composite materials: pat. US 10118365 B2; appl. 06.06.17; publ. 06.11.18.
41. Composite materials: pat. GB 2485453 A; appl. 07.11.11; publ. 16.05.12.
42. Structured thermoplastic in composite interleaves: US 10065393 B2, appl. 15.10.15; publ. 04.09.18.
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44. Curable prepregs with surface openings: pat. US 9802358 B2; appl. 20.12.13; publ. 31.10.17.
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46. Epoxy binders of the film type: pat. 2565177 Rus. Federation; appl. 25.09.14; publ. 20.10.15.
47. Epoxy binder, prepreg based on it and a product made from it: pat. 2587178, Rus. Federation; appl. 23.03.15; publ. 20.06.16.
48. Dushin M.I., Donetskiу K.I., Timoshkov P.N., Karavaev R.Yu. Research of process of out-of-autoclave formation semipregs on the basis of carbon fillers (rеview). Trudy VIAM, 2018, no. 9 (69), paper no. 03. Available at: http://www.viam-works.ru (accessed: January 13, 2022). DOI: 10.18577/2307-6046-2018-0-9-21-31.
Foreign and Russian publications on the use of carbon fiber-reinforced plastics (CFRPs) and glass fiber-reinforced plastics (GFRPs) in the structural elements of unmanned aerial vehicles (UAVs) were reviewed. The advantages of their application and the influence of strength-to-weight ratio of the materials on the efficiency of the UAV were described. The types of components made of polymer composite materials, their creation methods and the influence of manufacturing technology on the properties of plastics were explored. Adhesive prepregs with carbon and glass reinforcements developed by the NRC «Kurchatov Institute» – VIAM are proposed for possible use in the design of UAVs.
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The method of cold gas-dynamic spraying (CGS) of coatings has certain advantages, such as simplicity of the technological process, environmental friendliness, as well as the possibility of obtaining coatings with a wide range of functional properties (corrosion resistance, fire resistance, electrical insulating properties, etc.) through the use of various powder materials and ways to make them. The article presents the results of research in the field of application of powder materials for coating, describes composite powder materials with a complex structure obtained as a result of mechanical alloying, including those containing ceramic particles and particles of intermetallides.
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The climatic resistance of CFRP to influence of eight types of climate of different climatic zones during the three year exposition were investigated. Exposed polymer composite was studied by optical microscopy, dynamical mechanical analysis, moisture saturation, flexural strengthandcompressive strength of polymer composite were determined. Deterioration of upper layer of polymer matrices after exposition was shown. Relationship between climatic factors influence on polymer composites, changing of polymer matrices condition and decreasing of material strength was found.
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20. Salnikov V.G., Startsev O.V., Lebedev M.P., Kopyrin M.M., Vapirov Yu.M. Influence of daily and seasonal changes in relative humidity and temperature on the moisture saturation of carbon fiber in open climatic conditions. Vse materialy. Entsiklopedicheskiy spravochnik, 2022, no. 5, pp. 2–10.
21. Donetskiy K.I., Karavayev R.Yu., Tsybin A.I., Veshkin E.A., Mikhaldykin E.S. Constructional fiberglass plastic for manufacturing of enclosing sheeting elements. Aviacionnyye materialy i tehnologii, 2017, no. 3 (48), pp. 56–64. DOI: 10.18577/2071-9140-2017-0-3-56-64.
Рresents the results of the development of a set of standard samples of cast superalloy VZhL718. The process of choosing the optimal composition of the alloy is described, as well as the use of various technologies for obtaining a material suitable for calibrating various spectral equipment: mass spectrometers with a glow discharge, optical emission and х-ray fluorescence spectrometers, etc. The determination of 22 elements (Fe, Al, Cr, Co , Mo, Ti, Nb, Ta, P, Mn, Cu, Zn, As, Se, Cd, Sb, Te, Pb, Bi, V, Ag, Sn) in the obtained standard samples.
2. Bondarenko Yu.A. Trends in the development of high-temperature metal materials and technologies in the production of modern aircraft gas turbine engines. Aviacionnye materialy i tehnologii, 2019, no. 2 (55), pp. 3–11. DOI: 10.18577/2071-9140-2019-0-2-3-11.
3. Popovich A.A., Panchenko O.V., Naumov A.A., Sviridov A.V., Skupov A.A., Sbitneva S.V. Friction stir welding of aluminum-lithium alloy V-1469-T. Aviacionnye materialy i tehnologii, 2019, no. 4 (57), pp. 11–17. DOI: 10.18577/2071-9140-2019-0-4-11-17.
4. Min P.G., Vadeev V.E., Kramer V.V. The development of the new VZhM200 superalloy and the technology of its production for casting of the advanced engines’ blades by the directional crystallization. Aviation materials and technologies, 2021, no. 3 (64), paper no. 02. Available at: http://www.journal.viam.ru (accessed: February 11, 2023). DOI: 10.18577/2071-9140-2021-0-3-11-18.
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9. Kablov E.N., Morozov G.A., Krutikov V.N., Muravskaya N.P. Certification of standard samples of structure of complex-alloyed alloys using standard. Aviacionnye materialy i tehnologii, 2012, no. 2, pp. 9–11.
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Рresents a brief comparative analysis of domestic and foreign standards for testing non-metallic materials when interacting with microorganisms. Laboratory methods for analyzing the degree of biodegradation of materials used, among other things, in the test standards for synthetic polymers, are given. The significance of the physical dimensions of polymer samples for the search and testing of microorganism strains for the ability to use the chemical component of the material as a nutrient substrate is shown.
2. Kablov E.N., Startsev V.O. Systematical analysis of the climatics influence on mechanical properties of the polymer composite materials based on domestic and foreign sources (review). Aviacionnye materialy i tehnologii, 2018, no. 2 (51), pp. 47–58. DOI: 10.18577/2071-9140-2018-0-2-47-58.
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8. Laptev A.B., Nikolaev E.V., Kurshev E.V., Goryashnik Yu.S. Features of biodegradation of thermoplastics based on polyesters in different climatic zones. Trudy VIAM, 2019, no. 7 (79), paper no. 10. Available at: http://www.viam-works.ru (accessed: March 15, 2023). DOI: 10.18577/2307-6046-2019-0-7-84-91.
9. Yakovenko T.V., Bukharev G.M., Bobyreva T.V., Pykhtin A.A., Oparina L.A., Parshina L.N. Biocidal additives selection for foamed polyurethanes modification. Trudy VIAM, 2019, no. 7 (79), paper no. 04. Available at: http://www.viam-works.ru (accessed: March 18, 2023). DOI: 10.18577/2307-6046-2019-0-7-34-41.
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Heat-resistant alloys and steels
Petrushin N.V., Golinets S.A., Rimsha E.G., Ryzhkov P.V.Mechanical properties of corrosion-resistant nickel-based superalloy VZhL23
Echin A.B., Deynega G.I., Narsky A.R. New developments of NRC «Kurchatov Institute» – VIAM in the field of materials for casting processes of superalloys
Light-metal alloys
Krokhinа V.A., Arislanov A.A., Putyrskiy S.V., Naprienko S.A. Investigation of the influence of heat treatment modes in the β-region on the structure and mechanical properties of semi-finished products from the VT22M alloy
Shiryaev A.A., Nochovnaya N.A. Modern trends in the field of heat treatment and thermomechanical processing of metastable β-titanium alloys
Yashin M.S., Kapitanenko D.V. Investigation of the structure and properties of the VT3-1 alloy in relation to the technology for obtaining stampings of disks and turbine blades
Polymer materials
Mukhametov R.R., Mosiyuk V.N., Shosheva A.L., Bukharov S.V. Epoxybismaleimide resins: features and advantages
Composite materials
Kuznetsova P.A., Tkachuk A.I., Karavaev R.Yu., Donetskiy K.I. The use of semi-pregs for the manufacture of panels of housing structures from polymer composite materials by vacuum bag only
Putilina P.M., Kutsevich K.E., Isaev A.Yu. Carbon fiber-reinforced and glass fiber-reinforced polymer composites for the manufacture of components for unmanned aerial vehicles and their developing prospects
Protective and functional
coatings
Kozlov I.A., Fomina M.A., Demin S.A., Vasiliev A.S. Tendencies in the development of powder materials for the application of protective and functional coatings by the CGN method
Material tests
Veligodskiy I.M., Koval T.V., Gulyaev I.N. Influence of climatic conditions on CFRP VKU-39 after three year outdoor exposition in eight climatic zones
Min P.G., Yakimovich P.V., Alekseev A.V. Development of a set of reference samples of casting heat-resistant alloy VZhL718
Ermishev V.Yu., Laptev A.B., Startsev V.O. Peculiarities of assessing the resistance of polymeric materials to biodegradation in laboratory conditions. Part 2. Samples and methods for their analysis