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As a result of structural studies of a number of structural materials, it has beenestablished that the technology of mineral coatings does not create a coating assuch, but creates a uniform modified layer, in the absence of a sharp coatingboundary with the base metal.2. New experimental data on a number of mechanical properties (wear resistance,modulus of elasticity, roughness) of a titanium alloy VT6 (Ti-Al-V) modified withultradisperse particles of minerals were obtained using the sclerometry method.3. For the first time, a study was made of the temperature dependence in the 30140 °C range of the friction coefficients of samples from low-carbon steels 12X13and 18X2N2M with mineral-modified layers. It was found that under theexperimental conditions (contact pressure 550-600 MPa, displacement speed 4-74mm /s, Mobil SHC 639 oil), the coefficient of friction remains practically constantfor samples with mineral coatings (increases by no more than 10% of thecoefficient of friction at room temperature), in contrast to the friction coefficient ofunmodified samples, including hardened ones, for which its value increases bymore than 50% for the same tests.4.
It has been established that the degree of wear of the toroid from aluminaconjugated to disks of steel 12X13 with mineral coating when rotating in water isbelow the level of registration of the degree of wear and cannot be quantified in theexperiment (water temperature T = 23 °C, linear velocity v = 0.1 m /s, the totaltravel distance s = 2 km). The value of the coefficient of volumetric wear of thealumina toroid, conjugated with mineral-coated discs when rotating in water, is atleast two orders of magnitude smaller than the values of the coefficient of volumewear during rotation with uncoated discs.5. The physical mechanism of the effect of a sharp increase in the wear resistanceof metal alloys modified by ultradispersed particles of minerals is proposed. It8consists in the fact that the filling of microcracks and surface defects during themodification by ultradispersed particles blocks their development during wear anddeformation.Main results1.
The technology of mineral coatings does not create a coating as such, but createsa modified layer with a granular structure that differs from the bulk structure of themetal. The cumulative use of processes of mineral coating technology creates theeffect of bulk compression of the base metal and mineral in the zone of plasticdeformation, and, as a consequence, hardening of the surface layer. This "cold"treatment creates a thin layer containing mineral particles that concentrate in thepreviously created micro cavities. As a result, a modified layer with a highhardness and wear resistance is formed in the surface layer of the sample of steel ortitanium alloy.2.
Results of complex studies of the mechanical properties of metal properties ofsamples modified by minerals, including using the sclerometry method. The wearresistance of the surface of the titanium alloy VT6 (Ti-Al-V), modified byminerals, increased more than 4-fold as compared to the wear resistance of thesurface without modification.3.
Results of the investigation of the temperature dependence in the range of 30140 °C of the coefficients of friction of samples from low-carbon steels 12X13 and18X2N2M with minerals modified by layers. It was found that under theexperimental conditions (contact pressure 550-600 MPa, displacement speed 4-74mm / s, Mobil SHC 639 oil), the coefficient of friction remains practically constantfor samples with mineral coatings (increases by no more than 10% of thecoefficient of friction at room temperature), in contrast to the friction coefficient of9unmodified samples, including hardened ones, for which its value increases bymore than 50% for the same tests.List of published articles, where the main scientific results of thedissertation are reflectedThe materials of the thesis were published in 16 printed works, 3 of them areincluded in the Scopus citation system (of which 2 articles are in scientific journalsincluded in the list of the Higher Attestation Commission of the RussianFederation and 1 publication in the collection of reports of the internationalconference included in the Scopus and Web of citation system Science), 3 articlesin scientific journals included in the list of the Higher Attestation Commission ofthe Russian Federation, 3 articles in scientific journals and 7 publications incollections of reports and conference proceedings.The main results of the dissertation research were published in 7 papers witha total volume of 7.4 pp, the author's personal contribution is 6.9 pp.Articles published by the author in peer-reviewed scientific journals, included inthe international abstract databases and citations Scopus and Web of Science(Skazochkin AV - articles in Scopus:https://www.scopus.com/authid/detail.uri?authorId=6508248800 ):1.
Skazochkin A.V., Useinov A.S., Kislov S.V. Surface hardening of titanium alloyby minerals / Letters on Materials / 2018, No. 8 (1), pp. 81-87. DOI: 10.22226 /2410-3535-2018-1-81-87. (Scopus, 1.1 p.p.)2. Kislov S.V., Kislov V.G., Balasch P.V., Skazochkin A.V., Bondarenko G.G.and Tikhonov A.N. Wear resistance of a metal surface modified with minerals /Materials Science and Engineering / IOP Conf. Series: Materials Science and10Engineering 110 (2016).
DOI: 10.1088 / 1757-899X / 110/1/012048. (Scopus, Webof Science, 0.52 pp)3. Kislov S.V., Kislov V.G., Skazochkin A.V., Bondarenko G.G., Tikhonov A.N.Effective mineral coatings for hardening the surface of metallic materials.Metallurgy(Metally),2015,No.7,p.558-564.DOI:10.1134/S0036029515070095. (Scopus, 1.1 p.p.)Articles published by the author in the leading peer-reviewed scientific journalsand publications recommended by the Higher Attestation Commission:4. Skazochkin A.V., Useynov A.S., Kislov S.V.
Surface hardening of titaniumalloy by minerals / Letters on materials. 2018. T.8, No. 1 (29). C.81-87, (1.1 p.p.)5. Kislov S.V., Balash P.V., Kislov V.G., Skazochkin A.V. Research of sometribological parameters of a metal surface modified by minerals / magazine"Pumps. Turbines. Systems », 2016, №4, p.35-45, (1,2 p.p.)6. Balash PV, Kislov SV, Skazochkin AV Small innovative enterprise:opportunities for technology development and business scaling, "Innovations"magazine, 2015, №12, p.95-105, (1.6 p.p.)7. Kislov SV, Kislov VG, Balash PV, Skazochkin AV, Bondarenko GG, TikhonovA.N.
Increase of wear resistance of threaded joint of steel tubing during mineralcoating / Oil and gas business, 2015, №4, p.216-230, (0.8 p.p.)8. Kislov SV, Kislov VG, Skazochkin AV, Bondarenko GG, Tikhonov A.N.Effective mineral coatings for hardening the surface of metallic materials / Metals,2015, №4, p.56-63, (1,1 p.p.)Articles published by the author in other publications:9. Kislov S.V., Balash P.V., Kislov V.G., Skazochkin A.V. The use of mineralcoatings to improve the wear resistance of chromium-containing corrosionresistant steels / Chemical Engineering, 2016, No. 8, p.20-30, (0.9 p.p.)1110.
Kislov S.V., Balash P.V., Kislov V.G., Skazochkin A.V. Mineralmultifunctional coatings - a new type of protective coatings for structural materials/ Corrosion of the territory of "Neftegaz", 2016 No. 3, pp. 80-84, (0.8 p.p.)11. Kislov S.V., Balash P.V., Kislov V.G., Skazochkin A.V. Mineral coatings - anew word in surface engineering / Valve construction, 2016 No. 4 (103), from 5863, (0.8 p.p.)Publications of reports in the collections of conference reports:12. Skazochkin A.V., Bondarenko G.G., Kislov S.V. On the possibilities of a newtechnology of mineral coatings to improve the wear resistance of the metal surfacewhen creating parts of vacuum technology, "Vacuum Technology, Materials andTechnology." Collective monograph.
Materials of the XIII International Scientificand Technical Conference. Edited by Doctor of Technical Sciences, Professor S.B.Nesterov. М .: NOVELLA. 2018. p.78-82.13. Kislov S.V., Kislov V.G,. Skazochkin A.V., Bondarenko G.G., Tikhonov A.N.New technology to increase the wear resistance of metal surfaces and thepossibility of its use at aerospace enterprises / In the collection: New materials andtechnologies for deep processing of raw materials are the basis for innovativedevelopment of the Russian economy. Collection of reports of the II InternationalScientific and Technical Conference (dedicated to the 85th anniversary of thefoundation of the "VIAM" - the leading material science center of the country),2017.
p.26-38.14. Bondarenko G.G., Skazochkin A.V., Kislov S.V., Kislov V.G. On SomeProperties and Practice of Using Mineral Coatings / Proceedings of the 10thInternational Conference "(Zakopane, Poland, June 27-30, 2017). Poland, LublinUniversity of Technologies, 2017, p.50.15. Skazochkin A.V., Bondarenko G.G., Tikhonov A.N. On some properties andpractice of using mineral coatings / Collection of materials of the All-RussianScientific Conference "New Materials. Devices. Technology », December 9, 2016,12Moscow, MIEM NIU« Higher School of Economics ».- M.-MIEM NIU HSE,2017, p.12-1516.
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