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dx.doi.org/ 10.18577/2307-6046-2023-0-4-3-13

УДК 621.763

Ovsepyan S.V., Akhmedzyanov M.V., Filonova E.V., Zaysev D.V.

PRECIPITATION OF η-PHASE DURING HEAT TREATMENT IN Ni–Fe–Co–Nb–Ti ALLOY

The effect of annealing at the temperature of 800–1040 °С on the η-phase formation in the weldable wrought VZh176 alloy of the Ni–Fe–Co–Nb–Ti system, intended for use in gas turbine engines, has been investigated. It is shown that annealing leads to the precipitation of η-phase particles and change the shape and distribution: from short plates at the grain boundaries to the Widmanstatten structure. The dependence of the quantity of the phase on the duration of processing is established. The composition and crystallographic structure of the η-plates are determined by the methods of transmission electron and scanning microscopy, using the methods of backscattered electron diffraction and х-ray microanalysis. A diagram of the change of the η-phase from temperature and duration of treatment was built.

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dx.doi.org/ 10.18577/2307-6046-2023-0-4-14-26

УДК 621.763

Duyunova V.A., Trapeznikov A.V., Leonov A.A., Koreneva E.A.

MODIFYING OF CAST ALUMINUM ALLOYS (review)

The article presents and summarizes data on the modification of cast aluminum alloys. In addition to the use of standard modifiers such as sodium, strontium, titanium, zirconium, scandium and titanium diboride, a positive effect of europium and hafnium on alloys has been shown. Despite the fact that many effective modifiers belong to the rare earth elements (REE), not all REE have a strong effect. The introduction of metals such as ytterbium and erbium into aluminum alloys had almost no effect on the morphology and size of the microstructure.

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dx.doi.org/ 10.18577/2307-6046-2023-0-4-27-39

УДК 620.193:669.295

Zavarzin S.V., Duyunova V.A., Fomina M.A.

HIGH-TEMPERATURE CORROSION OF TITANIUM ALLOYS (review)

Titanium alloys often have an advantage over steel in terms of weight and corrosion-resistant characteristics. However, their use in the «hot» parts of gas turbines is limited by the low maximum operating temperature, which is due to their corrosive behavior in the high-temperature region. The paper analyzes the main mechanisms proposed to describe the corrosion behavior of titanium alloys in the main environments typical for the operation of gas turbines. The determining role of titanium in these processes is shown, which limits the possibilities of alloying alloys.

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dx.doi.org/ 10.18577/2307-6046-2023-0-4-40-48

УДК 678.747.2

Kondrashov S.V., Solovyanchik L.V., Minaeva L.A., Shorstov S.Yu.

THERMOPLASTIC POLYAMIDE COMPOSITION WITH ELECTRICALLY CONDUCTIVE PROPERTIES

The problem of simultaneously reducing the amount of functional filler and achieving the required level of electrically conductive properties of polyamide compositions can be solved by using a hybrid filler based on carbon black and carbon nanotubes. It is shown that due to the high specific surface area of carbon in the extrusion process, the destruction of the initial agglomerates does not occur completely, in addition, the reactation of pre-dispersed TU/CNT particles can occur, which allows the formation of a complex structure of the material – a filler localized in small particles distributed throughout the volume of the polymer matrix.

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Reference list

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dx.doi.org/ 10.18577/2307-6046-2023-0-4-49-59

УДК 678.067.5

Prokopenkov V.G., Kolpachkov E.D., Shosheva A.L.

INFLUENCE OF GLASS FIBER-REINFORCED BISMALEIMIDE COMPOSITION ON THE LEVEL OF ITS PROPERTIES

Results of a study on influence of glass fiber-reinforced bismaleimide composition and curing cycles on the level of its properties are shown. Current development and research in the field of bismaleimide resins and prepregs based on them both in the domestic and the international markets is examined. After testing, a series of physical and mechanical properties were obtained. Based on the results, composition with the highest flexural strength and glass transition temperature was chosen.

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Reference list

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3. Onishchenko G.G., Kablov E.N., Ivanov V.V. Scientific and technological development of Russia in the context of achieving national goals: problems and solutions. Innovatsii, 2020, no. 6 (260), pp. 3–16.
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6. Gunyaeva A.G., Kurnosov A.O., Gulyaev I.N. High-temperature polymer composite materials developed FSUE «VIAM» for aero-space engineering: past, present and future (review). Trudy VIAM, 2021, no. 1 (95), paper no. 05. Available at: http://www.viam-works.ru (accessed: October 17, 2022). DOI: 10.18577/2307-6046-2021-0-1-43-53.
7. Davydova I.F., Kavun N.S. Polyimide fiberglass plastic with lower curing temperature. Trudy VIAM, 2015, no. 2, paper no. 08. Available at: http://www.viam-works.ru (accessed: October 17, 2022). DOI: 10.18577/2307-6046-2015-0-2-8-8.
8. Zharinov M.A., Shimkin A.A., Akhmadiyeva K.R., Zelenina I.V. Features and properties of solvent-free PMR-type polyimide resin. Trudy VIAM, 2018, no. 12 (72), paper no. 05. Available at: http://www.viam-works.ru (accessed: October 17, 2022). DOI: 10.18577/2307-6046-2018-0-12-46-53.
9. Muhametov R.R., Dolgova E.V., Merkulova Yu.I., Dushin M.I. Development of heat-resistant bismaleimide binder for composites for aeronautical application. Aviacionnye materialy i tehnologii, 2014, no. 4, pp. 53–57. DOI: 10.18577/2071-9140-2014-0-4-53-57.
10. Chen X., Yuan L., Zhang Z. et al. New glass fiber/bismaleimide composites with significantly improved flame retardancy, higher mechanical strength and lower dielectric loss. Composites. Part B: Engineering, 2015, vol. 71, pp. 96–102. DOI: 10.1016/j.compositesb.2014.11.001.
11. Valueva M.I., Zelenina I.V., Zharinov M.A., Akhmadieva K.R. World market of high temperature polyimide carbon plastic (review). Trudy VIAM, 2019, no. 12 (84), paper no. 08. Available at: http://www.viam-works.ru (accessed: October 17, 2022). DOI: 10.18577/2307-6046-2019-0-12-67-79.
12. Zhao Y., Liu W., Keey Seah L., Boay Chai G. Delamination growth behavior of a woven E-glass/bismaleimide composite in seawater environment. Composites. Part B: Engineering, 2016, vol. 106, pp. 332–343. DOI: 10.1016/j.compositesb.2016.09.045.
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dx.doi.org/ 10.18577/2307-6046-2023-0-4-60-68

УДК 621.317.411

Korolev D.V., Valeev R.A., Piskorsky V.P., Morgunov R.B.

ANALYSIS OF THE APPLICABILITY OF RARE EARTH MAGNETS RE–TM–B AND RE–TM FOR MAGNETOCALORIC COOLING (review)

Various aspects of the use of RE–TM–B alloys for the development of magnetocaloric cooling systems are considered. Thermodynamic analysis of temperature variations, magnetic part of entropy, internal energy and mechanical work performed in the Carnot cycle is given. The analysis of such factors as the limiting frequency of cycles, thermal conductivity and heat capacity of the working fluid, the density of particles with spin is given. The possibilities of creating hybrid magnetocaloric machines in which the transition between the para- and ferromagnetic states of rare-earth alloys are stimulated by external influences: temperature, mechanical stresses, laser and current remagnetization are discussed.

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Reference list

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21. Korolev D.V., Piskorskii V.P., Valeev R.A., Bakradze M.M., Dvoretskaya E.V., Koplak O.V., Morgunov R.B. Rare-earth RE–TM–B micromagnets engineering (review). Aviation materials and technology, 2021, no. 1 (62), paper no. 05. Available at: http://www.journal.viam.ru (accessed: November 05, 2022). DOI: 10.18577/2713-0193-2021-0-1-44-60.
22. Koplak O.V., Kunitsyna E.I., Valeev R.A., Korolev D.V., Piskorskii V.P., Morgunov R.B. Ferromagnetic microwires α-Fe/(PrDy)(FeCo)B for micromanipulators and polymer composites. Trudy VIAM, 2019, no. 11 (83), paper no. 07. Available at: http://www.viam-works.ru (accessed: November 05, 2022). DOI: 10.18577/2307-6046-2019-0-11-60-67.
23. Morgunov R.B., Koplak O.V., Talantsev A.D., Korolev D.V., Piskorskij V.P., Valeev R.A. The phenomenology of the magnetic hysteresis loops in multilayer microwires α-Fe/DyPrFeCoB. Trudy VIAM, 2019, no. 7 (79), paper no. 08. Available at: http://www.viam-works.ru (accessed: November 05, 2022). DOI: 10.18577/2307-6046-2019-0-7-67-75.
24. Kablov E.N., Startsev V.O. Measurement and forecasting of materials samples’ temperature during weathering in different climatic zones. Aviacionnye materialy i tehnologii, 2020, no. 4 (61), pp. 47–58. DOI: 10.18577/2071-9140-2020-0-4-47-58.
25. Piskorsky V.P., Valeev R.A., Korolev D.V., Morgunov R.B., Rezchikova I.I. Terbium and gadolinium dopin g influence on thermal stability and magnetic properties of sintered magnets Pr–Tb–Gd–Fe–Co–B. Trudy VIAM, 2019, no. 7 (79), paper no. 07. Available at: http://www.viam-works.ru (accessed: November 06, 2022). DOI: 10.18577/2307-6046-2019-0-7-59-66.

dx.doi.org/ 10.18577/2307-6046-2023-0-4-69-80

УДК 621.763

Artemenko N.I., Tatarnikov S.V., Doronin O.N.

INVESTIGATION OF THE INFLUENCE OF THE PARAMETERS OF APPLYING THE CERAMIC LAYER OF THE ZrO2–7 % Y2O3 HEAT-SHIELDING COATING BY PLASMA SPRAYING ON THE PRODUCTIVITY OF THE TECHNOLOGICAL PROCESS

The dependence of the coefficient of use of ceramic powder material on the parameters of coating by the plasma spraying method was obtained in the work. The dependences of the material utilization factor and arc current, the ratio of argon and nitrogen consumption, the total consumption of plasma gases, the spraying distance and the fractional composition of the powder material are established, and the natural limitations of the variability of these parameters are described. The dependence of the material utilization factor on the average value of the fraction range has been established.

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Reference list

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3. Gurrappa I., Sambasiva Rao A. Thermal barrier coatings for enhanced efficiency of gas turbine engines. Surface CoatingsTechnol, 2006, no. 201, pp. 3016. DOI: 10.1016/j.surfcoat.2006.06.026.
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5. Treninkov I.A., Zavodov A.V., Petrushin N.V. Research of crystal structure and microstructure of the ZhS32-VI nickel-base superalloy synthesized by selective laser fusion method, after high-temperature mechanical tests. Aviacionnye materialy i tehnologii, 2019, no. 1 (54), pp. 57–65. DOI: 10.18577/2071-9140-2019-0-1-57-65.
6. Loshchinin Yu.V., Budinovskiy S.A., Razmakhov M.G. Heat conductivity of heat-protective coatings ZrO2–Y2O3 alloyed by REM oxides obtained by magnetronny application. Aviaсionnye materialy i tehnologii, 2018, no. 3, pp. 42–49. DOI: 10.18577/2071-9140-2018-0-3-42-49.
7. Doronin O.N., Artemenko N.I., Stekhov P.A., Voronov V.A. Deposition of ceramic layers of heat protection coatings based on the system Gd2O3–ZrO2–HfO2 and Sm2O3–Y2O3–HfO2. Aviation materials and technologies, 2022, no. 1 (66), paper no. 10. Available at: http://www.journal.viam.ru (accessed: November 24, 2022). DOI: 10.18577/2713-0193-2022-0-1-129-142.
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dx.doi.org/ 10.18577/2307-6046-2023-0-4-81-89

УДК 620.197

Losev A.V.

PROPERTIES AND FEATURES OF PROTECTIVE COATINGS BASED ON POLYVINYLIDENE FLUORIDE AND ITS COPOLYMERS (review)

A review of developments and scientific publications in the field of protective coatings based on polyvinylidene fluoride and vinylidene fluoride copolymers is presented. Chemical properties of the polymer, its polymorphic modifications, peculiarities of dissolution and properties of obtained dispersions in the environment of organic solvents are described. Advantages and disadvantages of obtained protective coatings are given. A review of research results on modification of polyvinylidene fluoride dispersions with inorganic fillers and preparation of superhydrophobic coatings is presented.

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Reference list

1. Kablov E.N. Materials of the new generation – the basis of innovation, technological leadership and national security of Russia. Intellekt i tekhnologii, 2016, no. 2 (14), pp. 16–21.
2. Kablov E.N. What is the future to be made of? Materials of a new generation, technologies for their creation and processing – the basis of innovation. Krylya Rodiny, 2016, no. 5, pp. 8–18.
3. Kablov E.N. The role of fundamental research in the creation of new generation materials. Reports of XXI Mendeleev Congress on General and Applied Chemistry: in 6 vols. St. Petersburg, 2019, p. 24.
4. Huang X., Tepylo N., Pommier-Budinger V. et al. A survey of acephobic coatings and their potential use in a hybrid coating/active ice protection system for aerospace applications. Progress in Aerospace Sciences, 2019, vol. 105, pp. 74–97.
5. Shuldeshov E.M., Nazarov I.A., Ivanov M.S., Donskih I.N. Decoratively finishing materials for wall panels of passenger cab and the crew cockpit of air vehicles (review). Trudy VIAM, 2022, no. 11 (117), paper no. 05. Available at: http://www.viam-works.ru (accessed: August 03, 2022). DOI: 10.18577/2307-6046-2020-0-11-38-47.
6. Zhivulin B.E., Zherebtsov D.A., Lebedeva S.M. Synthesis and properties of products of high-temperature heat treatment of polyvinylidene fluoride. Fizika tverdogo tela, 2017, vol. 59, no. 2, pp. 394–398.
7. Leivo E., Wilenius T., Kinos T. et al. Properties of thermally sprayed fluoropolymer PVDF, ECTFE, PFA and FEP coatings. Progress in Organic Coatings, 2004, vol. 49, pp. 69–73.
8. Zheleznyak V.G. Modern paint and varnish materials for use in aviation equipment products. Trudy VIAM, 2019, no. 5 (77), paper no. 07. Available at: http://www.viam-works.ru (accessed: August 03, 2022). DOI: 10.18577/2307-6046-2019-0-5-62-67.
9. Pavlov A.V., Andreeva N.P., Pavlov M.R., Merkulova Yu.I. Climatic tests of paint coating based on fluoroplastic and features of its destruction. Trudy VIAM, 2019, no. 5, paper no. 12. Available at: http://www.viam-works.ru (accessed: August 03, 2022). DOI: 10.18577/2307-6046-2019-0-5-103-110.
10. Beider E.Ya., Donskoy A.A., Zhelezina G.F. and others. Experience in the use of fluoropolymer materials in aviation technology. Rossiyskiy khimicheskiy zhurnal, 2008, vol. LII, no. 3, pp. 30–44.
11. Kuznetsova V.A., Marchenko S.A., Emelyanov V.V., Zheleznyak V.G. Study of the influence of molecular mass of epoxy oligomers and hardeners on the operational properties of paint coatings. Aviation materials and technology, 2021, no. 1 (62), paper no. 07. Available at: http://www.journal.viam.ru (accessed: August 03, 2022). DOI: 10.18577/2713-0193-2021-0-1-71-79.
12. Yun H.K., Yong S.K., Min Y.S., Myung J.M. Corrosion Protection Performance of PVDF/PMMA-Blended Coatings by Electrochemical Impedance Method. Journal Electrochemical Science and Technology, 2018, vol. 9, no. 1, pp. 1–8.
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16. Kostitsyn A.V., Golikov I.V., Sakharov L.A. Influence of polymethyl methacrylate on the rheological properties of polyvinylidene fluoride dispersions in organic solvents of various nature. Khimiya i khimicheskaya tekhnologiya, 2008, vol. 51, no. 4, pp. 77–78.
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29. Method for obtaining an anticorrosive wear-resistant coating on magnesium alloys: pat. 2617088 Rus. Federation; filed 18.02.16; publ. 19.04.17.
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dx.doi.org/ 10.18577/2307-6046-2023-0-4-90-98

УДК 66.017

Kravchenko N.G., Shchekin V.K., Efimova E.A., Zherdev D.V.

CONSERVATION OILS PROTECTIVE ABILITY

Comparative experiments were carried out to determine the protective properties of promising conservation oils in comparison with standard K-17 oil. The most effective conservation oils that can be used in the development of recommendations for the protection of aircraft parts and the revision of current regulatory documentation have been determined. Based on the analysis of the oil-soluble corrosion inhibitors contained in the tested oils and the mechanism of their action, an assumption was made to explain the effectiveness of a particular oil.

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Reference list

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5. Kablov E.N., Startsev O.V., Medvedev I.M. Review of international experience on corrosion and corrosion protection. Aviacionnye materialy i tehnologii, 2015, no. 2 (35), pp. 76–87. DOI: 10.18577/2071-9140-2015-0-2-76-87.
6. Vetrova E.Yu., Shchekin V.K., Kurs M.G. Comparative evaluation of methods for the determination of corrosion aggressivity of the atmosphere. Aviacionnye materialy i tehnologii, 2019, no. 1 (54), pp. 74–81. DOI: 10.18577/2071-9140-2019-0-1-74-81.
7. Kurs M.G., Nikolayev E.V., Abramov D.V. Full-scale and accelerated tests of metallic and nonmetallic materials: key factors and specialized stands. Aviacionnye materialy i tehnologii, 2019, no. 1 (54), pp. 66–73. DOI: 10.18577/2071-9140-2019-0-1-66-73.
8. Abramova M.G. Full-scale accelerated tests of aluminum alloys at continental and marine type stations. Aviacionnye materialy i tehnologii, 2020, no. 3 (60), pp. 57–65. DOI: 10.18577/2071-9140-2020-0-3-57-65.
9. Abramova M.G., Lutsenko A.N., Varchenko E.A. Concerning the aspects of validation of climate resistance of airborne materials at all life cycle stages (review). Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 86–94. DOI: 10.18577/2071-9140-2020-0-1-86-94.
10. Startsev V.O., Slavin A.V., Nikolaev E.V. Study of the content of aggressive ions in the at-mosphere and sea water of the Gelendzhik bay. Trudy VIAM, 2020, no. 10 (92), paper no. 12. Available at: http://www.viam-works.ru (accessed: November 07, 2022). DOI: 10.18577/2307-6046-2020-0-10-106-115.
11. Kablov E.N., Startsev O.V., Medvedev I.M., Panin S.V. Corrosive aggressiveness of the coastal atmosphere. Part 1. Factors of influence (review). Corrosion: materials, protection. 2013, no. 12, рр. 6–18.
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13. Conservation oil "Rosoil-700": pat. 2232794С1 Rus. Federation; filed 26.12.02; publ. 20.07.04.
14. Washing-preservation liquid concentrate: pat. 2024605 Rus. Federation; filed 14.04.92; publ. 15.12.94.
15. Washing-preservation liquid concentrate: pat. 2218385 Rus. Federation; filed 29.08.02; publ. 10.12.03.
16. Washing-preservation liquid concentrate: pat. 2215777 Rus. Federation; filed 22.04.02; publ. 10.11.03.
17. Gaidar S.M., Nizamov R.K., Golubev M.I., Golubev I.G. Protective efficiency of water-soluble corrosion inhibitors. Vestnik Mordovskogo universiteta, 2018, vol. 28, no. 3, pp. 429–444.
18. Gaidar S.M., Petrovsky D.I., Posunko I.A. Boric derivatives of amines as water-soluble corrosion inhibitors. Korroziya: materialy, zashchita, 2017, no. 12, pp. 27–35.
19. Levashova V.I., Yangirova I.V., Kazakova E.V. Review of corrosion inhibitors based on organoboron compounds. Sovremennye problemy nauki i obrazovaniya, 2014, no. 6, pp. 10–17.
20. Kuznetsov Yu.I. Progress in the science of corrosion inhibitors. Korroziya: materialy, zashchita, 2015, no. 3, pp. 12–23.
21. Kuznetsov Yu.I. Triazoles are a class of multifunctional corrosion inhibitors. Review. Part I-1. 1, 2, 3-benzotriazole, its derivatives, copper, zinc and their alloys. Korroziya: materialy, zashchita, 2019, no. 1, pp. 1–14.

10.

dx.doi.org/ 10.18577/2307-6046-2023-0-4-99-117

УДК 539.32:620.179.7

Startsev V.O., Vardanyan A.M.

INFLUENCE OF EXTERNAL INFLUENCES ON THE COEFFICIENT OF LINEAR THERMAL EXPANSION OF CARBON FIBER PLASTICS Part 3. Climatic aging of nanomodified cyanester carbon plastic

In the third part of the article, the influence of additives of multilayer carbon nanotubes (astralene) on the change in the coefficient of linear thermal expansion (CLTE) of CFRP based on a cyanoether binder, exposed for 24 months in a temperate climate and laboratory simulation conditions, is considered. It is shown that the presence of 0.5 and 3.0 wt. % astralene significantly changes the CLTE in the glassy and highly elastic states of the binder carbon fiber in the initial state and at the stages of 24 months of climatic testing in the modes of standard exposure on an open atmospheric stand and exposure with weekly thermal cycles simulating the mode of takeoff and landing of an aircraft. The mechanism of the stabilizing effect of the nanomodifier was revealed when comparing the CLTE, compressive and bending strengths, and the glass transition temperature of the binder during the aging of carbon fiber in natural and simulated laboratory conditions.

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38. Perov N.S., Startsev V.O., Chutskova E.Yu. et al. Properties of carbon plastic based on polycyanurate binder after exposure to various natural and artificial environments. Materialovedenie, 2017, no. 2, pp. 3–9.
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40. Startsev V.O., Slavin A.V. Carbon and glass reinforced polymer based on solvent-free binders resistance to the impact of a moderate cold and moderate warm climate. Trudy VIAM, 2021, no. 5 (99), paper no. 12. Available at: http://www.viam-works.ru (accessed: December 5, 2022). DOI: 10.18577/2307-6046-2021-0-5-114-126.
41. Startsev V.O., Plotnikov V.I., Antipov Yu.V. Reversible influence of moisture on the mechanical properties of PCM after weathering. Trudy VIAM, 2018, no. 5 (65), paper no. 12. Available at: http://www.viam-works.ru (accessed: December 5, 2022). DOI: 10.18577/2307-6046-2018-0-5-110-118.
42. Startsev O.V., Kurs I.S., Deev I.S., Nikishin E.F. Thermal expansion of KMU-4L carbon fiber after 12 years of exposure in outer space. Voprosy materialovedeniya, 2013, no. 4 (76), pp. 77–85.
43. Startsev V.O., Molokov M.V., Grebeneva T.A., Tkachuk A.I. Dynamic mechanical and thermomechanical analysis of reversible plasticization of epoxy-diane resin-diaminodiphenylsulfon system by moisture. Polymer Science. Series A, 2017, vol. 59, no. 5, pp. 640–648.
44. Startsev O.V., Vapirov Y.M., Lebedev M.P., Kychkin A.K. Comparison of Glass-Transition Temperatures for Epoxy Polymers Obtained by Methods of Thermal Analysis. Mechanics of Composite Materials, 2020, vol. 56, no. 2, pp. 227–240.
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49. Park S.Y., Choi W.J., Choi C.H., Choi H.S. An experimental study into aging unidirectional carbon fiber epoxy composite under thermal cycling and moisture absorption. Composite Structures, 2019, vol. 207, pp. 81–92.
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55. Salnikov V.G., Startsev O.V., Lebedev M.P. et al. Influence of daily and seasonal changes in relative humidity and temperature on moisture saturation of carbon fiber in open climatic conditions. Vse materialy. Entsiklopedicheskiy spravochnik, 2022, no. 5, pp. 2–10.
56. Startsev V.O., Nechaev A.A. Moisture transfer in cyanoether carbon plastic during accelerated and full-scale climatic tests. Physical and mechanical tests, strength and reliability of modern structural and functional materials: materials of XIV All-Russia. conf. for testing and research of the properties of materials "TestMat". Moscow, 2022, pp. 214–226.
57. Panin S.V., Startsev O.V., Krotov A.S., Medvedev I.M., Frolov A.S. Corrosion and aging of structural materials surface studied by 3D microscopy. Trudy VIAM, 2014, no. 12, paper no. 12. Available at: http://www.viam-works.ru (accessed: December 5, 2022). DOI: 10.18577/2307-6046-2014-0-12-12-12.
58. Startsev VO, Valevin EO, Gulyaev AI. The influence of polymer composite materials’ surface weathering on its mechanical properties. Trudy VIAM, 2020, no. 8 (90), paper no. 07. Available at: http://www.viam-works.ru (accessed: December 5, 2022). DOI: 10.18577/2307-6046-2020-0-8-64-76.
59. Startsev O.V., Medvedev I.M., Kurs M.G. Hardness as the indicator of corrosion of aluminum alloys in sea conditions. Aviacionnye materialy i tehnologii, 2012, no. 3, pp. 16–19.

11.

dx.doi.org/ 10.18577/2307-6046-2023-0-4-118-127

УДК 678.8

Ivanov M.S., Pavlukovich N.G., Donskih I.N., Morozova V.S.

INFLUENCE OF OPERATIONAL FACTORS ON THE PROPERTIES OF FABRIC-FILM MATERIAL FOR LOW-PRESSURE AIR DUCTS OF THE AIR CONDITIONING SYSTEM OF AIRCRAFT

Within the framework of the general qualification of the VRT-12 brand coated textile material developed by the «Kurchatov Institute» ‒ VIAM for the manufacture of a sealed shell of flexible air ducts of the air conditioning system of aircraft, studies of fire safety characteristics and the influence of operational factors on the properties of the material were carried out. Compliance of the material with aviation regulations on flammability, smoke formation and release of toxic gases has been established. Resistance to temperatures from ‒60 to +80 °C, high humidity, mold fungi and aggressive liquids has been confirmed.

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Reference list

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12.

dx.doi.org/ 10.18577/2307-6046-2023-0-4-128-136

УДК 621.763

Skorobogatko D.S., Golovkov A.N., Kudinov I.I., Kulichkova S.I.

CRITERIA FOR EVALUATING THE QUALITY OF DEFECTOSCOPIC MATERIALS IN PENETRANT TESTING (review)

A review of the physicochemical properties of defectoscopic materials that affect the results of penetrant testing has been carried out. The rationale for the need to determine and verify each parameter of a set of defectoscopic materials is presented. The properties of the components of the kits that are not specified in the quality certificates and manufacturer's certificates are considered. It has been established that the characteristics and properties specified in the technical documentation of the manufacturer are not enough to assess the quality of defectoscopic materials. Parameters for quality assessment are proposed, which will allow choosing the most technologically advanced modern sets of defectoscopic materials.

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Reference list

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22. Loshchinin Yu.V., Pakhomkin S.I., Razmakhov M.G. Phase transformation temperatures and calorimetric analysis of powder compositions of nickel-based superalloys. Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 79–85. DOI: 10.18577/2071-9140-2020-0-1-79-85.
23. Evgenov A.G., Shurtakov S.V., Prager S.M., Malinin R.Yu. On the development of a universal calculation method for assessing the degradation of recycled metal powder materials, depending on the cyclicity of use in the selective laser melting process. Aviacionnye materialy i tehnologii, 2020, no. 4 (61), pp. 3–11. DOI: 10.18577/2071-9140-2020-0-4-3-11.

13.

CONTENТS

Heat-resistant alloys and steels

Ovsepyan S.V., Akhmedzyanov M.V., Filonova E.V., Zaytsev D.V. Precipitation of η-phase during heat treatment in Ni–Fe–Co–Nb–Ti alloy

Light-metal alloys

Duyunova V.A., Trapeznikov A.V., Leonov A.A., Koreneva E.A. Modifying of cast aluminum alloys (review)

Zavarzin S.V., Duyunova V.A., Fomina M.A. High-temperature corrosion of titanium alloys (review)

Composite materials

Kondrashov S.V., Solovyanchik L.V., Minaeva L.A., Shorstov S.Yu. Thermoplastic polyamide composition with electrically conductive properties

Prokopenkov V.G., Kolpachkov E.D., Shosheva A.L.Influence of glass fiber-reinforced bismaleimide composition on the level of its properties

Korolev D.V., Valeev R.A., Piskorsky V.P., Morgunov R.B. Analysis of the applicability of rare earth magnets RE–TM–B and RE–TM for magnetocaloric cooling (review)

Protective and functional

coatings

Artemenko N.I., Tatarnikov S.V., Doronin O.N. Investigation of the influence of the para-meters of applying the ceramic layer of the ZrO₂–7 % Y₂O₃ heat-shielding coating by plasma spraying on the productivity of the technological process

Losev A.V. Properties and features of protective coatings based on polyvinylidene fluoride and its copolymers (review)

Material tests

Kravchenko N.G., Shchekin V.K., Efimova E.A., Zherdev D.V. Conservation oils protective ability

Startsev V.O., Vardanyan A.M. Influence of external influences on the coefficient linear thermal expansion of carbon fiber plastics. Part 3. Climatic aging of nanomodified cyanester carbon plastic

Ivanov М.S., Pavlukovich N.G., Donskih I.N., Morozova V.S. Influence of operational factors on the properties of fabric-film material for low-pressure air ducts of the air conditioning system of aircraft

Skorobogatko D.S., Golovkov A.N., Kudinov I.I., Kulichkova S.I. Criteria for evaluating the quality of defectoscopic materials in penetrant testing (review)

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