T he work objective is to study new application methods based on the resource-saving technologies for nanostructured coatings with different functionality. The main task of the work is investigating modern efficient methods to increase strength, corrosion resistance, and wearability. The subject of study is highspeed application methods for anti-corrosion and wear-resistant coatings that significantly improve the durability and reliability of products. Design, technological features, specifications, and a scope of applicability of various installation models for highspeed deposition methods, including a gas-plasma technique, are described. The analysis results of the basic physical, mechanical and performance properties of the coatings obtained with the compact high-performance process equipment are presented. As a result of this work, it is shown that coatings obtained by the high-speed methods, unlike the subsonic methods, are characterized by the high performance. The paper also presents perspectives for development of the processing methods of the multifunctional coating application, the improvement of equipment and materials. The data obtained can be used for designing processes of applying dense coatings of consistent quality on the complex products made from nearly all metals and alloys. The results obtained are applicable in the mechanical engineering, repair production, aviation, energy engineering, etc.
adhesion, high-speed plating, gas-thermal methods, wear, microstructure, nanostructured coatings, technology, hardness, installation.
Введение. Газотермические способы напыления покрытий в России активно развиваются с конца пятидесятых годов
XX века. В то время в ремонтном производстве и промышленности необходимо было решить ряд проблем, в частно-
сти, таких, как:
— упрочнение деталей машин,
— нанесение защитных и толстослойных покрытий, способных компенсировать износ деталей,
— получение новых материалов [1, 2, 3].
Современные способы газотермического напыления можно разделить на две основные группы: обычное (до-
звуковое) и сверхзвуковое напыление.
Сверхзвуковое газопламенное напыление (СГПН) — это новый способ, базирующийся на непрерывном сжи-
гании горючего газа с кислородом с целью получения высокоскоростной (сверхзвуковой) струи на выходе из горелки.
Порошок вводится в газовый поток, которым он нагревается, ускоряется (обычно более 5 скоростей звука) и направ-
ляется на обрабатываемую деталь. Рабочий процесс в сверхзвуковой напылительной горелке аналогичен рабочему
процессу в ракетном двигателе [4, 5, 6].
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2. Kravchenko, I.N., et al. Inzhenernye metody obespecheniya dolgovechnosti i nadezhnosti mashin i tekhnologicheskogo oborudovaniya v promyshlennosti. [Engineering methods to ensure durability and reliability of machines and manufacturing equipment in industry.] Moscow: Eko-Press, 2011, 424 p. (in Russian).
3. Puzryakov, A.F., et al. Tekhnologii naneseniya zashchitnykh i iznosostoykikh pokrytiy povyshennoy prochnosti. [Technology of application of protective and wear resistant ruggedized coatings.] Moscow; Stavropol: Eko-Press; AGRUS, 2013, 300 p. (in Russian).
4. Alkhimov, А.P., Klinkov, S.V., Kosarev, V.F.; Fomin, V.M., ed. Kholodnoe gazodinamicheskoe napylenie. Teoriya i praktika. [Cold gas spraying. Theory and practice.] Moscow: Fizmatlit, 2010, 536 p. (in Russian).
5. Kuznetsov, Yu. А., Goncharenko, V.V. Issledovanie kharakteristik pokrytiy, poluchennykh kholodnym gazodinamicheskim napyleniem. [Study of characteristics of coatings obtained by cold gas-dynamic sputtering.] Machinery and Equipment for Rural Area, 2013, no. 12, pp. 39–42 (in Russian)
6. Kravchenko, I.N., et al. Effektivnye tekhnologicheskie metody naneseniya pokrytiy gazoplamennym napyleniem. [Effective processing coating flame-spraying methods.] Vestnik of MSAU, 2015, no. 1, pp. 36–41 (in Russian).
7. Kuznetsov, Yu. А. Kratkiy obzor oborudovaniya dlya sverkhzvukovogo gazoplamennogo napyleniya. [Quick overview of equipment for supersonic flame spraying.] Luts´k: LNTU, 2011, Науковi нотатки, iss. 33, pp. 110–114 (in Russian).
8. Baldayev, L.Kh., Borisov, V.N., Vakhalin, V.A. Gazotermicheskoe napylenie: uchebnoe posobie dlya vuzov. [Gasthermal spraying: Study guide for higher schools.] Moscow: Market DS, 2007, 344 p. (in Russian).
9. Kuznetsov, Yu.А., Goncharenko, V.V., Kulakov, K.V. Innovatsionnye sposoby gazotermicheskogo napyleniya pokrytiy. [Innovative methods of coating thermal spraying.] Orel: OrelGAU, 2011, 124 p. (in Russian).
10. Zubrilina, E.M., et al. Termodinamicheskoe uprochnenie svarnykh i naplavlennykh izdeliy sel´skokhozyaystvennogo mashinostroeniya. [Thermodynamic hardening of welded and built-up products of Agricultural Engineering.] Stavropol´: AGRUS, 2012, 392 p. (in Russian).
11. Kravchenko, I.N., Kuznetsov, Yu.А., Gurevskiy, A.V., Kolomeychenko, A.A., Almosov, A.S. Tekhnologii vysokoskorostnogo naneseniya nanostrukturirovannykh pokrytiy. [Technologies of high-speed application of nanostructured coatings.] Construction and Road Building Machinery, 2015, no. 2, pp. 10–15 (in Russian).
12. Chernoivanov, V.I., Golubev, I.G. Vosstanovlenie detaley mashin (sostoyanie i perspektivy). [Restoration of machine parts (state and prospects).] Moscow: Rosinformagrotekh, 2010, 371 p. (in Russian).
13. Puzryakov, A.F. Teoreticheskie osnovy tekhnologii plazmennogo napyleniya : uchebnoe posobie. [Theoretical foundations of plasma spray technology: Study guide.] 2nd revised and enlarged ed. Moscow: Izd-vo MGTU im. N.E. Baumana, 2008, 360 p. (in Russian).
