Archive - Электронный научный журнал "ТРУДЫ ВИАМ"

Articles

dx.doi.org/ 10.18577/2307-6046-2022-0-4-3-12

УДК 621.763

Bazyleva O.A., Karashaev M.M., Shestakov A.V., Dmitriev N.S.

STRUCTURE OF A SINGLE CRYSTALLINE INTERMETALLIC ALLOY BASED ON Ni3Al AFTER DEFORMATOIN-HEAT TREATMENT

Examines the study of the effect of deformation and subsequent heat treatment on the structure of single-crystal samples from a heat-resistant intermetallic alloy based on the Ni₃Al compound. It is shown that at a degree of deformation (upsetting in a closed container) ≤40 %, no cracks are formed in the structure of the material under study. Subsequent thermal annealing after deformation promotes the process of recrystallization and the formation of a grain structure in deformed samples of an intermetallic alloy based on the Ni₃Al compound.

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1. Kablov E.N., Ospennikova O.G., Lomberg B.S. Strategic Directions for the Development of Structural Materials and Technologies for Their Processing for Aircraft Engines. Avtomaticheskaya svarka, 2013, no. 10, pp. 23–32.
2. Kablov E.N. Innovative developments of FSUE «VIAM» SSC of RF on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030». Aviacionnye materialy i tehnologii, 2015, no. 1 (34), pp. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.
3. Kablov E.N., Bondarenko Yu.A., Echin A.B. Development of technology of cast superalloys directional solidification with variable controlled temperature gradient. Aviacionnye materialy i tehnologii, 2017, no. S, pp. 24–38. DOI: 10.18577/2071-9140-2017-0-S-24-38.
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5. Kablov E.N. VIAM materials and technologies for Aviadvigatel. Permskiye aviatsionnye dvigateli, 2014, no. 31, pp. 43–47.
6. Svetlov I.L. High-temperature Nb–Si-composites. Materialovedenie, 2010, no. 9, pp. 29–38.
7. Svetlov I.L. High-temperature Nb-Si-composites – replacement of single-crystal nickel heat-resistant alloys. Dvigatel, 2010, no. 5 (71). pp. 36–37.
8. Kablov E.N. Formation of domestic space materials science. Vestnik RFFI, 2017, no. 3, pp. 97–105.
9. Letnikov M.N., Lomberg B.S., Ovsepyan S.V. Investigation experimental alloys based on Ni–Al–Co ternary system for development a new high-temperature intermetallic alloy for disk application. Trudy VIAM, 2013, no. 10, paper no. 01. Available at: http://www.viam-works.ru (accessed: November 23, 2021).
10. Ping Li, Shu-suo Li, Ya-fang Han. Influence of solution heat treatment on microstructure and stress rupture properties of a Ni3Al base single crystal superalloy IC6SX. Intermetallics, 2011, no. 19, pp. 182–186.
11. Bazyleva O.A., Efimochkin I.Yu., Arginbaeva E.G., Kuptsov R.S., Karashaev M.M. Composite material based on an intermetallic alloy of the VKNA type, reinforced with oxides. Perspektivnye materialy, 2020, no. 10, pp. 19–27.
12. Jozwik P., Polkowski W., Bojar Z. Applications of Ni3Al based intermetallic alloys – current stage and potential perceptivities. Materials, 2015, no. 8, pp. 2537–2568. DOI: 10.3390/ma8052537.
13. Bolshakova A.N., Efimochkin I.Yu., Murasheva V.V. Mechanically alloyed dispersion-strengthened composite materials. Konstruktsii iz kompozitsionnykh materialov, 2015, no. 1 (137). pp. 36–40.
14. Intermetallic alloy based on the nickel-aluminum-cobalt system: pat. RU 2603415 C1; filed 15.08.15; publ. 27.11.16.
15. Povarova K.B., Lomberg B.S., Filin S.A., Kazanskaya N.K., Shkolnikov D.Yu., Bespalova M.D. Structure and properties of (β + γ)-alloys of the Ni–Al–Co system. Metally, 1994, no. 3, pp. 77–81.
16. Povarova K.B., Kazanskaya N.K., Lomberg B.S., Shkolnikov D.Yu., Filin S.A., Bespalova M.D. Phase composition and structure of alloys based on NiAl of the Ni–Al–Co–M system, where M is Ti, Zr, Hf, V, Nb, Ta, Cr, Mo. Metally, 1996, no. 3, pp. 85–94.
17. Povarova K.B., Filin S.A., Maslenkov S.B. Phase equilibria with the participation of the β-phase in Ni–Al–Me (Me – Co, Fe, Mn, Cu) systems at 900 and 1100 °C. Metally, 1993, no. 1, pp. 191–205.
18. Povarova K.B., Kazanskaya N.K., Lomberg B.S., Bondarenko Yu.A., Shkolnikov D.Yu. Structural heat-resistant (β + γ)-alloys based on NiAl with increased low-temperature plasticity. Metallurg, 1996, no. 5, pp. 1.
19. Kucheryaev V.V., Mironova N.A., Shishkov S.U. Research of technological features of Ni–Al–Co system ingots deformation. Trudy VIAM, 2016, no. 3 (39), paper no. 01. Available at: http://viam-works.ru (accessed: November 23, 2021). DOI: 10.18557/2307-6046-2016-0-3-1-1.
20. Bazyleva O.A., Karashaev M.M., Shestakov A.V., E.G. Arginbaeva. Effect of annealing temperature on the homogeneity of inter-metallic alloy based on Ni3Al compound. Trudy VIAM, 2020, no. 8 (90), paper no. 01. Available at: http://www.viam-works.ru (accessed: November 23, 2021). DOI: 10.18577/2307-6046-2020-0-3-10.

dx.doi.org/ 10.18577/2307-6046-2022-0-4-13-21

УДК 621.98.043

Kapitanenko D.V., Moiseev N.V., Bazhenov A.R., Gladkov Yu.A.

DEVELOPMENT OF THE ISOTHERMAL DEFORMATION ON AIR TECHNOLOGY OF PRODUCTION TURBOCHARGER DISKS USING COMPUTER MODELING

Describes the results of the work performed on the development of technology for the manufacturing of forgings of disk made of heat-resistant nickel alloys by isothermal deformation on air using computer modeling in the QForm software package. The stress-strain state of die tooling was calculated and the technology for producing disk forgings for welded shafts of the TK32 compressor was developed. Information on the of introduction of the developed technology into serial production are presented.

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dx.doi.org/ 10.18577/2307-6046-2022-0-4-22-31

УДК 621.763

Khrulkov I.A., Gulyaev I.N., Mishkin S.I.

FEATURES OF CUTTING POLYMER COMPOSITE MATERIALS WITH DIAMOND WHEELS (review)

The production of polymer composite materials (PCM) in the twenties and in the future until 2030 will continue to grow, despite the pandemic and other obstacles of modern reality. And although the designs are becoming more integral, manufacturers are still faced with the task of choosing the type of machining. The use of machining with diamond wheels on water-cooled machines allows cutting various composites (fiberglass, carbon fiber, organoplastics and hybrid materials) with the required precision and quality.

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Reference list

1. Kablov E.N. VIAM: new generation materials for PD-14. Krylya Rodiny, 2019, no. 7–8, pp. 54–58.
2. Kablov E.N. New materials are needed for space exploration. Nauchnaya Rossiya. Available at: https://scientificrussia.ru/interviews/akademik-e-n-kablov-dlya-osvoeniya-kosmosa-nuzhny-novye-materialy (accessed: December 10, 2021).
3. 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.
4. Kablov E.N. Innovative developments of FSUE «VIAM» SSC of RF on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030». Aviacionnye materialy i tehnologii, 2015, no. 1 (34), pp. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.
5. Raskutin A.E., Khrulkov A.V., Girsh R.I. Technological features of machining of composite materials when manufacturing details of designs (review). Trudy VIAM, 2016, no. 9, paper no. 12. Available at: http://www.viam-works.ru (accessed: December 16, 2021). DOI: 10.18577/2307-6046-2016-0-9-12-12.
6. Integrated development of methods for improving the efficiency of processing hard-to-cut materials by improving cutting tools and the conditions for their use: Report on the research work. Sumy, 2015. Available at: https://pandia.ru/text/80/580/14374-2.php (accessed: December 15, 2021).
7. Minibaev M.I., Raskutin A.E, Goncharov V.A. Peculiarities of technology production specimens of PCM on CNC machines (review). Trudy VIAM, 2019, no. 1 (73), paper no. 11. Available at: http://www.viam-works.ru (accessed: December 16, 2021). DOI: 10.18577/2307-6046-2019-0-1-105-114.
8. Vavilin V.A., Pasechnik K.A., Pushkarev A.Yu., Amelchenko N.A. Features of mechanical processing of polymer composite materials. Aktualnye problemy aviatsii i kosmonavtiki, 2018, vol. 1, pp. 12–14.
9. Timoshkov P.N., Usacheva M.N., Khrulkov A.V. Stickiness and possibility of using prepregs for automated technologies (review). Trudy VIAM, 2018, no. 8 (68), paper no. 04. Available at: http://www.viam-works.ru (accessed: September 25, 2019). DOI: 10.18577/2307-6046-2018-0-8-38-46.
10. Timoshkov P.N., Khrulkov A.V., Yazvenko L.N., Usacheva M.N. Composite materials for
non-autoclave technology (review). Proceedings of VIAM. 2018, no. 3 (63). Art. 05.
URL: http://www.viam-works.ru (accessed: December 16, 2021). DOI: 10.18577/2307-6046-2018-0-3-37-48.
11. Tkachuk A.I., Donetsky K.I., Terekhov I.V., Karavaev R.Yu. The use of thermosetting matrices for the manufacture of polymer composite materials by the non-autoclave molding methods. Aviation materials and technology, 2021. no. 1 (62), paper no. 03. Available at: https://journal.viam.ru (accessed: December 16, 2021). DOI: 10.18577/2713-0193-2021-0-1-22-23.
12. Huang J.-P., Yudin A.V., Tarasov I.V., Shevtsov S.N. Vacuum infusion technology in the production of composite structures: problems and prospects. Training of engineering personnel in the context of digital transformation: a collection of scientific works. Rostov-on-Don: DSTU, 2019, pp. 118–144.
13. Development of a methodology for modeling the machining of holes in mixed metal/composite packages. Conducting research and development of a model of boundary phenomena in the processing of mixed packages on the example of the drilling process: Report on the research work. Available at: https://pandia.ru/text/80/642/96497-3.php (accessed: December 15, 2021).
14. Grishchenko T.A., Melyukhov N.I., Lyubushkin V.O. The use of waterjet cutting in the processing of parts from polymer composite materials. Vestnik inzhenernoy shkoly DVFU, 2017, no. 2 (31). pp. 49–55.
15. Eliseeva A.V., Rovkin A.M., Timoshenko M.D., Morev D.S. Optimal processing of products from composite materials. Molodoy uchenyy, 2017, no. 52 (186), pp. 41–45.
16. Baurova N.I., Makarov K.A. Machining of machine parts from polymer composite materials. Tekhnologiya metallov, 2017, no. 2, pp. 15–19.
17. Andreev M.V., Shityuk A.A. Features of high-speed processing of polymer composite materials. Polzunovskiy almanakh, 2016, no. 4. S. 89–93.
18. Mityasov L.V. Features of processing carbon fiber. Glavnyy mekhanik, 2018, no. 6, p. 6.
19. Zubarev Yu.M., Priemyshev A.V., Zaostrovsky A.S. Features of the technology of mechanical processing of carbon fiber. Science intensive technologies in mechanical engineering, 2016, no. 5, pp. 30–33.
20. Pripisnov Ya.A., Grishina O.I. Modern methods of mechanical processing of composite materials (review). Trudy VIAM, 2018, no. 10 (70), paper no. 07. Available at: http://www.viam-works.ru (accessed: December 16, 2021). DOI: 10.18577/2307-6046-2018-0-10-53-61.
21. Features of diamond cutting of stone. Available at: https://k-mechanism.ru/osobennosti-proczessa-almaznoj-rezki-kamnya.html (accessed: December 15, 2021).

dx.doi.org/ 10.18577/2307-6046-2022-0-4-32-41

УДК 669.018.95

Lutsenko A.N., Efimochkin I.Yu., Moiseeva N.S.

STUDY MECHANISM OF CREATION STRUCTURE ON COMPOSITE MATERIAL BASED ON MOLYBDENUM AFTER HIGH-TEMPERATURE INFLUENCE

High-temperature influence on composite material based on molybdenum hardened with dispersed particles of Al₂O₃ oxide structure and phase composititon is considered. Temperature was change in the range from 1300 to 2050 °C. With scanning electron microscopy application microstructure analysis is carried out, by X-ray microanalysis means local element composition is defined, also by diffraction analysis means samples surface phase composition in an initial condition and after impact is investigated.

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Reference list

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17. Grashchenkov D.V., Efimochkin I.Yu., Bolshakova A.N. High-temperature metal-matrix composite materials reinforced with particles and fibers of refractory compounds. Aviacionnye materialy i tehnologii, 2017, no. S, pp. 318–328. DOI: 10.18577/2071-9140-2017-0-S-318-328.
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dx.doi.org/ 10.18577/2307-6046-2022-0-4- 42-51

УДК 677.523

Stepanova E.V., Maximov V.G., Ivakhnenko Yu.A.

CHANGES IN THE STRUCTURE OF OXIDE CERAMIC FIBERS WHEN EXPOSED TO HIGH TEMPERATURE HEATS

Using the method of transmission optical microscopy in polarized light, changes in the internal structure of various oxide ceramic fibers under the influence of high-temperature heats were investigated. Complete restructuring of the structure of all examined fibers in the process of high-temperature exposure was revealed. Significant differences were established during recrystallization between fibers of different types. Mullite compositions showed stabilization of the recrystallization structure at the stage of formation of moderately large grains separated by stable large-angle (up to 90°) borders.

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Reference list

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8. Babashov V.G., Varrik N.M. Zirconia fibers as a component of high temperature thermal insulation (review). Trudy VIAM, 2021, no. 10 (104). paper no. 08. Available at: http://www.viam-works.ru (accessed: November 18, 2021). DOI: 10.18577/2307-6046-2021-0-10-79-86.
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dx.doi.org/ 10.18577/2307-6046-2022-0-4-52-60

УДК 621.763

Mishurov K.S., Payarel S.M., Kurnosov A.O., Bokov V.V.

PHYSICAL AND MECHANICAL PROPERTIES OF SYNTACTIC FOAM VPZ-24 WITH A MAXIMUM SERVICE TEMPERATURE UP TO 320 °С

In this work, we investigated the main physical and mechanical properties of VPZ-24 syntactic foam based on a cyanate ester polymer base with the addition of hollow glass microspheres as a filler. Syntactic foam VPZ-24 is intended for filling sections of multilayer honeycomb heat-loaded structures. The results of the study of the microstructure of syntactic foam are shown. The influence of the effect of elevated temperature on the values of the ultimate strength in compression of a syntactic foam is shown. It was found that the maximum service temperature of syntactic foam VPZ-24 is 320 °C.

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Reference list

1. 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.
2. Kablov E.N. Innovative developments of FSUE «VIAM» SSC of RF on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030». Aviacionnye materialy i tehnologii, 2015, no. 1 (34), pp. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.
3. Raskutin A.E. Development strategy of polymer composite materials. Aviacionnye materialy i tehnologii, 2017, no. S, pp. 344–348. DOI: 10.18577/2071-9140-2017-0-S-344-348.
4. Kablov E.N. Materials are the basis of any business. Delovaya Slava Rossii, 2013, no. 2, pp. 4–9.
5. Sarychev I.A., Serkova E.A., Khmelnitsky V.V., Zastrogin O.B. Thermosetting binders for aircraft floor panel materials (review). Trudy VIAM, 2019, no. 7 (79), paper no. 03. Available at: http://www.viam-works.ru (accessed: January 3, 2021). DOI: 10.18577/2307-6049-2019-0-7-26-33.
6. Mukhametov R.R., Petrova A.P. Thermosetting binders for polymer composites (review). Aviacionnye materialy i tehnologii, 2019, no. 3 (56), pp. 48–58. DOI: 10.18577/2071-9140-2019-0-3-48-58.
7. Mishkin S.I., Malakhovskiy S.S. Fast curing resins and prepregs: receiving, properties and areas of application (review). Trudy VIAM, 2019, no. 5 (77), paper no. 04. Available at: http://viam-works.ru (accessed: January 3, 2021). DOI: 10.18577/2307-6046-2019-0-5-32-40.
8. Aristova Е.Yu., Denisova V.А., Drozhzhin V.S. et al. Composite materials using hollow microspheres. Aviacionnye materialy i tehnologii, 2018, no. 1 (50), pp. 52–57. DOI: 10.18577/2071-9140-2018-0-1-52-57.
9. Pavlyuk B.Ph. The main directions in the field of development of polymeric functional materials. Aviacionnye materialy i tehnologii, 2017, no. S, pp. 388–392. DOI: 10.18577/2071-9140-2017-0-S-388-392.
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12. Kovalenko A.V., Sidelnikov N.K., Sokolov I.I., Tundaykin K.O. Spheroplastic with adjustable viscosity for filling sections of honey-comb structures. Trudy VIAM, 2019, no. 11 (83), paper no. 04. Available at: http://www.viam-works.ru (accessed: November 23, 2021). DOI: 10.18577/2307-6046-2019-0-11-37-43.
13. Sokolov I.I., Kogan D.I., Raskutin A.E., Babin A.N., Filatov A.A., Morozov B.B. Multilayer constructions with spheroplast for aircraft products. Konstruktsii iz kompozitsionnykh materialov, 2014, no. 1 (133). pp. 37–42.
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16. Osipchik V.S., Olikhova Yu.V., Nguyen L.Kh. Determination of the glass transition temperature of the epoxysiloxane composition by thermal methods of analysis. Plasticheskiye massy, 2017, no. 7–8. pp. 34–37.
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dx.doi.org/ 10.18577/2307-6046-2022-0-4-61-74

УДК 677.027.622

Sidorina A.I.

MODIFICATION OF THE SURFACE OF CARBON REINFORCING FILLERS FOR POLYMER COMPOSITE MATERIALS BY ELECTROCHEMICAL TREATMENT (review)

A method for increasing the adhesive interaction at the interface between a carbon fiber reinforcing filler and a polymer matrix in polymer composite materials by modifying the filler surface by electrochemical treatment is considered. The methods used to characterize the surface of the origin and modified fibers are listed. The features of the electrochemical oxidation process of carbon fibers are shown. The main advantages and disadvantages of this modification method are given. An overview of the results of studies of electrochemical oxidation of carbon reinforcing filler use to improve the mechanical characteristics of carbon plastics is given.

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Reference list

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dx.doi.org/ 10.18577/2307-6046-2022-0-4-75-83

УДК 678.8

Bespalova E.E., Beljaev А.А., Devin K.L.

LOW DENSITY RADIO ENGINEERING MATERIALS (review)

The article is devoted to the creation of radio-absorbing polymer composite materials of a dielectric type of reduced density. The main characteristics of a number of developed domestic and foreign foamed radio-absorbing materials are given, the technologies for their production, the scope of application are described and the features of radio-absorbing materials for use in anechoic camera are considered. The characteristics of the reduced density radio-absorbing materials developed at the Kurchatov Institute Research Center – VIAM are given.

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Reference list

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2. Kablov E.N. Trends and guidelines for Russia's innovative development: Collection scientific-inform. materials. Moscow: VIAM, 2015, pp. 530–538.
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dx.doi.org/ 10.18577/2307-6046-2022-0-4-84-95

УДК 66.017

Kozlov I.A., Zavarzin S.V., Fomina M.A., Kurshev E.V., Lavrov N.S.

INFLUENСE OF THE RATIO OF THE ANODIC AND CATHODIC IMPULSE ACTIVE TIMES ON THE PROPERTIES OF THE PLASMA ELECTROLITIC COATING ON THE ML5 ALLOY

Considers the question of the influence on the structure of the PEO coating of the time ratio of exposure to the polarizing voltage in the anodic and cathodic half-periods during the oxidation process in a silicate-phosphate electrolyte. A linear dependence of the time of cathodic polarization and the thickness of the coating formed on a cast magnesium alloy in a silicate-phosphate electrolyte has been revealed. When using anodic pulses of short duration, the coating has numerous defects in the form of pores, which negatively affects the protective properties.

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Reference list

1. Kablov E.N. The role of fundamental research in the creation of new generation materials. Report XXI Mendeleev Congress on General and Applied Chemistry: in 6 vols. St. Petersburg, 2019, vol. 4, p. 24.
2. Kablov E.N., Bakradze M.M., Gromov V.I., Voznesenskaya N.M., Yakusheva N.A. New high strength structural and corrosion-resistant steels for aerospace equipment developed by FSUE «VIAM» (review). Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 3–11. DOI: 10.18577/2071-9140-2020-0-1-3-11.
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.
4. Mostyaev I.V., Akinina M.V. Features and development trends in the field of heat treatment of magnesium alloys (review). Trudy VIAM, 2018, no. 7 (67), paper no. 5. Available at: http://www.viam-works.ru (accessed: December 9, 2021). DOI: 10.18577/2307-6046-2018-0-7-41-48.
5. Mukhina I.Yu., Uridiya Z.P., Trofimov N.V. Сorrosion-resistant casting magnesium alloys. Aviacionnye materialy i tehnologii, 2017, no. 2 (47), pp. 15–23. DOI: 10.18577/2071-9140-2017-0-2-15-23.
6. Liu L.J., Schlesinger M. Corrosion of magnesium and its alloys. Corrosion Science, 2009, vol. 51, no. 8, pp. 1733–1737. DOI: 10.1016/j.corsci.2009.04.025.
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9. Kozlov I.A., Vinogradov S.S., Uridiya Z.P., Duyunova V.A., Manchenko V.A. Effekt predvaritelnogo travleniya splava ML5 pered plazmennym elektroliticheskim oksidirovaniyem [Effect of preliminary etching of alloy ML5 before plasma electrolytic oxidation]. Trudy VIAM, 2018, no. 9 (69), paper no. 04. Available at: http://www.viam-works.ru (accessed: December 9, 2021). DOI: 10.18577/2307-6046-2018-0-9-32-42.
10. Blawert C., Dietzel W., Ghali E., Song G. Anodizing treatments for magnesium alloys and their effect on corrosion resistance in various environments. Advanced Engineering Materials, 2006, vol. 8, no. 6, pp. 511–533. DOI: 10.1002/adem.200500257.
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33. Kozlov I.A., Vinogradov S.S., Naprienko S.A. Structure and properties of a PEO coating formed on an ML5 alloy in an electrolyte containing silicates and phosphates. Korroziya: materialy, zashchita, 2017, no. 8, pp. 35–41.
34. Kozlov I.A., Vinogradov S.S., Kulyushina N.V., Kutyrev A.E., Pastukhov A.S. Influence of the polarizing current amplitude ratio on the protective properties of the PEO coating formed on the ML5 alloy. Korroziya: materialy, zashchita, 2016, no. 11, pp. 40–48.

10.

dx.doi.org/ 10.18577/2307-6046-2022-0-4-96-107

УДК 543.6

Karachevtsev F.N., Dvoretskov R.M., Nikolaev E.V.

DETERMINATION OF RARE EARTH METALS IN ALUMINUM ALLOYS BY ATOMIC EMISSION SPECTROMETRY WITH INDUCTIVELY COUPLED PLASMA

A method is proposed for the determination of scandium, yttrium, cerium, lanthanum, neodymium, and praseodymium by inductively coupled plasma atomic emission spectrometry in aluminum alloys. Analytical REM lines free from significant spectral overlaps are selected. The selection of the sample preparation method was carried out, namely, dissolution in a mixture of hydrochloric and nitric acids. The accuracy indicator of the developed technique is not more than 4% rel. for the content of rare-earth metals from 0.05 to 6 wt. %, which fully ensures the control of the content of rare-earth metals in products made of aluminum alloys.

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Reference list

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dx.doi.org/ 10.18577/2307-6046-2022-0-4-108-117

УДК 669.046.516.2

Buzenkov A.V., Valeev R.A., Piskorsky V.P., Morgunov R.B.

THE EFFECT OF THE CONTENT OF YTTRIUM ON THE PROPERTIES OF THE SINTERED MAGNETS Nd–Dy–Y–Fe–Co–B

Was investigated by the effect of using yttrium on the properties of the sintered Magnets Nd–Dy–Y–Fe–Co–B. It is shown that the coercive force on the magnetization and induction is decreased with an increase in the content of yttrium. The magnitude of the rectangulation of the clarification curve slightly increases. The value of residual induction and the magnetization of saturation changes not significantly, but tend to increase with the content of yttria. Thus yttrium is not desirable impurity in thermostable magnets for navigation instruments.

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Reference list

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dx.doi.org/ 10.18577/2307-6046-2022-0-4-118-130

УДК 621.833: 621.852621.833: 621.852

Laptev A.B., Zakirova L.I., Zagorskikh O.A., Pavlov M.R.

METHODS OF INVESTIGATION OF THE PROCESSES OF CORROSION-MECHANICAL DESTRUCTION AND HYDROGENATION OF METALS (review) Part 1. Investigation of corrosion-mechanical destruction 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. The values of relative constriction, elongation, and tensile strength at slow stretching are accepted as the main criteria for the corrosion destruction of materials.

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13.

CONTENТS

Heat-resistant alloys and steels

Bazyleva O.A., Karashaev M.M., Shestakov A.V., Dmitriev N.S. Structure of a single crystalline intermetallic alloy based on Ni₃Al after deformatoin-heat treatment

Kapitanenko D.V., Moiseev N.V., Bazhenov A.R., Gladkov Yu.A.Development of the isothermaldeformation on air technology of production turbocharger disks using computer modeling

Polymer materials

Khrulkov I.A., Gulyaev I.N., Mishkin S.I. Features of cutting polymer composite mate-rials with diamond wheels (review)

Composite materials

Lutsenko A.N., Efimochkin I.Yu., Moiseeva N.S. Study mechanism of creation structure on composite material based on molybdenum after high-temperature influence

Stepanova E.V., Maksimov V.G., Ivakhnenko Yu.A.Changes in the structure of oxide ceramic fibers when exposed to high temperature heats

Mishurov K.S., Payarel S.M., Kurnosov A.O., Bokov V.V. Physical and mechanical properties of syntactic foam VPZ-24 with a maximum service temperature up to 320 °С

Sidorina A.I. Modification of the surface of carbon reinforcing fillers for polymer composite materials by electrochemical treatment (review)

Bespalova E.E., Belyaev A.A., Devin K.L. Low density radio engineering materials (review)

Protective and functional

coatings

Kozlov I.A., Zavarzin S.V., Fomina M.A., Kurshev E.V., Lavrov N.S. Influence of the ratio of the anodic and cathodic impulse active times on the properties of the plasma electrolitic coating on the ML5 alloy

Material tests

Karachevtsev F.N., Dvoretskov R.M., Nikolaev E.V. Determination of rare earth metals in aluminum alloys by atomic emission spectrometry with inductively coupled plasma

Buzenkov A.V., Valeev R.A., Piskorsky V.P.,Morgunov R.B. The effect of the content of yttrium on the properties of the sintered Magnets Nd–Dy–Y–Fe–Co–B

Laptev A.B., Zakirova L.I. Zagorskikh O.A., Pavlov M.R. Methods of investigation of the processes of corrosion-mechanical destruction and hydrogenation of metals (review). Part 1. Investigation of corrosion-mechanical destruction of steels

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