EVALUATION OF DYNAMIC IMPACT ON NANOSIZED PARTICLES IN THE PROCESS OF CENTRIFUGAL SURFACING OF POWDER CHARGE

KURILYONOK Artem A., Junior Researcher, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

BELOTSERKOVSKY Marat A., D. Sc. in Eng., Assoc. Prof., Head of the Laboratory of Gas-Thermal Methods of Machine Components Hardening, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

A physico-mathematical model of the process of formation of coatings with nanosized modifiers by induction centrifugal surfacing has been developed. The forces acting on a particle in a liquid melt during isothermal holding during induction centrifugal surfacing are determined. A dependence is obtained that determines the rate of displacement of nanoscale particles from the initial position in the liquid melt during induction centrifugal surfacing of coatings, for various materials and technological regimes. The implementation of the model allows selecting materials and technological regimes that minimize the heterogeneity of the concentration of particles of the strengthening phase and nano-sized particles in the melt of the coating, or, depending on the task, the model allows selecting the deposition regimes for the purposeful displacement of nanoscale particles within the required limits. The practical application of the obtained results for particles of TiC with a size of 20 nm is shown.

physico-mathematical model of dynamic impact, powder charge, antifriction coatings, centrifugal induction surfacing, nanosized modifiers

• Rjabcev I.A. Indukcionnaja naplavka [Induction weld]. Remont. Vosstanovlenie. Modernizacija [Repairs. Recovery. Modernization], 2005, no. 11, pp. 37–40.
• Gafo Yu.N., Sosnovskij I.A. Thermal parameters for centrifugal induction sintering of powder coatings. Powder Metallurgy and Metal Ceramics, 2009, vol. 48, no. 1–2, pp. 105–111.
• Dorozhkin N.N., Abramovich T.M., Kashicin L.P. Teoreticheskie osnovy poluchenija detalej s pripechenym sloem [Theoretical basis for obtaining parts with a baked layer]. Doklady Akademii nauk BSSR [Reports of the Academy of
  Sciences of the BSSR], 1974, vol. 18, no. 5, pp. 428–431.
• Danilchenko B.V. Naplavka [Surfacing]. Kiev, Nauova Dumka, 1983. 75 p.
• Komarov A.I. Sintez nanostrukturirovannykh tugoplavkikh napolnitelej, ikh vlijanie na strukturu i svojstva siluminov [Synthesis of nanostructured refractory fillers, their effect on the structure and properties of silumin]. Perspektivnyetekhnologii [Advanced technologies]. Vitebsk, VGTU, 2015, vol. 2, pp. 202–223.
• Samsonov G.V., Vinnickij I.M. Tugoplavkie soedinenija: Spravochnik [Refractory Compounds: Handbook]. Moscow, Metallurgija, 1976. 560 p.
• Slukhockij A.E., Ryskin S.E. Induktory dlja indukcionnogo nagreva [Inductors for induction heating]. Leningrad, Energija, 1974. 264 p.
• Grebenjuk V.F., Khomutov V.I., Kalmykov E.V. Vybor konfiguracii i raschet induktora dlya vysokochastotnogo nagreva: metodicheskie ukazanija k kursovomu u diplomnomu proektirovaniju [Choice of configuration and calculation of inductor for high-frequency heating: guidelines for course and diploma design]. Orenburg, GOU VPO OGU, 2002. 31 p.
• Korjagin Ju.D., Filatov V.I. Indukcionnaja zakalka stalej [Induction hardening of steels]. Chelyabinsk, JuUrGU, 2006. 52 p.
• Mrochek Zh.A., Kozhuro L.M., Filonov I.P. Progressivnye tehnologii vosstanovlenija i uprochneniya detalej mashin: ucheb. posobie [Progressive technologies of restoration and hardening of machine parts: a manual]. Minsk, Tehnoprint, 2000. 268 p.
• Sosnovskij I.A., Gafo Ju.N., Kacshicin L.P., Sosnovskij A.V., Grudko I.I., Trembickij I.P. Upravlenie tekhnologicheskimi rezhimami centrobezhnogo indukcionnogo nanesenija poroshkovyh pokrytij [Control of technological regimes of
  centrifugal induction powder coatings]. Sbornik materialov 6 Mezhdunarodnoj nauchno-tekhnicheskoj konferencii “Sovremennye metody i tekhnologii sozdanija i obrabotki materialov” [Proceedings of the 6th International Scientific and Technical Conference “Modern methods and technologies for the creation and processing of materials”]. Minsk, FTI, 2009, vol. 2, pp. 233–236.
• Sosnovsky I., Gafo Y., Kashitsyn L., Sosnovsky A. Control and stabilization of technological modes of powder materials centrifugal induction sintering on cylindrical parts internal surface. Materials Powder Metallurgy Congress Exhibition “Euro PM 2007”. France, 2007, vol. 2, pp. 117–119.
• Gafo Ju.N., Sosnovskij I.A. Opredelenie termicheskikh parametrov centrobezhnogo indukcionnogo pripekanija poroshkovykh pokrytij [Determination of the thermal parameters of the centrifugal induction coating of powder coatings]. Poroshkovaja metallurgija [Powder metallurgy], 2009, no. 1–2, pp. 15–18.
• Sosnovskij I.A., Gafo Ju.N., Kuznechik O.O., Klimenko S.E., Grudko I.I., Trembickij I.P. Ispolzovanie nanostrukturnykh modifikatorov pri indukcionnoj centrobezhnoj naplavke antifrikcionnykh pokrytij [Use of nanostructured modifiers for
  induction centrifugal surfacing of antifriction powder coatings]. Sbornik materialov 2 Mezhdunarodnoj nauchno-prakticheskoj konferencii “Inzhenerija poverkhnostnogo sloja detalej mashin” [Proceedings of the 2th International Scientific and Practical Conference “Engineering of the surface layer of machine parts”]. Minsk BNTU, 2010, pp. 49–51.
• Khodakov G.S., Judkin Ju.P. Sedimentacionnyj analiz wysokodispersnyh system [Sedimentation analysis of highly disperse systems]. Moscow, Vysshaja shkola, 1981. 496 p.
• Schukin E.D. Kolloidnaja khimija: Uchebnik dlja universitetov i khimiko tekhnologicheskikh vuzov [Colloid Chemistry: A Textbook for Universities and Chemical Technology Universities]. Moscow, Vysshaja shkola, 2004. 445 p.
• Landau L.D., Lifshic E.M. Teoreticheskaja fizika: Uchebnoe posobie. T. 6: Gidrodinamika [Theoretical physics: Textbook, Vol. 1: Hydrodynamics]. Moscow, Nauka, 1986. 736 p.
• Judin S.B., Levin M.M., Rozenfeld S.E. Centrobezhnoe litjo [Centrifugal casting]. Moscow, Mashinostroenie, 1972. 280 p.
• Mikheev R.S., Chernyshova T.A. Aljumomatrichnye kompozicionnye materialy s karbidnym uprochneniem dlja resheniya zadach novoj tekhniki [Alumoumatrix composite materials with carbide hardening for solving problems of new technology]. Moscow, Maska, 2013. 356 p.
• Guljaev B.B. Litejnye process [Foundry processes]. Moscow, Mashgiz, 1960. 416 p.