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Kislov S.V., Kislov V.G., Balash P.V., Skazochkin A.V. Using the technologyof mineral coatings to increase the life of parts at enterprises of the energy sector /Prospects for the development of new technologies in the energy sector of Russia:conference materials // International Scientific and Practical Conference, October27-28, 2016, Moscow-M .: "VTI", 2016 .-p. 229-23417.
Bondarenko G., Kislov S., Skazochkin A., Kislov V., Balash P., Tikhonov A.New Mineral Coverings: Technology, Opportunities, Commercialization /Proceedings of the 9th International Conference "New Electrical and ElectronicTechnologies and their Industrial Implementation "(Zakopane, Poland, June 23 26, 2015). Poland, Lublin University of Technologies, 2015, p.99.18. Kislov S.V., Kislov V.G., Balasch P.V., Skazochkin A.V., Bondarenko G.G.,Kulagin V.P., Tikhonov A.N. Collection of Proceedings of the XIII RussianChinese Symposium "New Materials and Technologies." Under the generaleditorship of Academician RAS KA Solntsev.
In 2 volumes, Moscow: IntercontactScience, 2015, p.296-299.Personal contribution of the author in the development of the problemThe author plays the main role in carrying out experiments on the complexstudy of the tribological properties of mineral coatings on various materials anddetails, studying the change in the microstructure of the modified layer, performinga study of the temperature dependence of the coefficient of friction of samplesfromlow-carbonsteelswithmineral-modifiedlayers,processingandgeneralization of the results obtained. Personal participation of the applicantconsisted in the formulation of research tasks and their solution, obtainingexperimental results on wear resistance and other mechanical properties,interpreting experimental data obtained, writing articles and preparing reports.13Approbation of workThe main results and provisions presented in the paper were reported at thefollowing conferences:- XIII International Scientific and Technical Conference "Vacuum Technology,Materials and Technology" (Moscow, Sokolniki Culture & Exhibition Center,2018, April 24-26, 2018).
Report "On the possibilities of a new technology formineral coatings to improve the wear resistance of a metal surface when creatingparts of vacuum technology";- 10th International Conference "New Electrical and Electronic Technologies andtheir Industrial Implementation" (Zakopane, Poland, June 27-30, 2017). The report"On Some Properties and Practice of Using Mineral Coatings";- 2nd International Scientific and Technical Conference "New Materials andTechnologies for Deep Processing of Raw Materials - the Basis of InnovativeDevelopment of the Russian Economy" (Moscow, VIAM, June 27, 2017).
Thereport "New technology of increase of wear resistance of a metal surface andpossibility of its use at the enterprises of an aerospace industry";- International scientific and practical conference "Prospects for the developmentof new technologies in the energy sector in Russia" (Moscow, JSC "VTI", October26-27, 2016). Report "The use of technology of mineral coatings to increase thelife of parts at enterprises of the energy sector";- All-Russian Scientific Conference "New Materials. Devices. Technologies »(Moscow, MIEM HSE, December 9, 2016). Report "On some properties andpractice of using mineral coatings";- 9th International Conference "New Electrical and Electronic Technologies andtheir Industrial Implementation" (Zakopane, Poland, June 23 - 26, 2015).
Report"A New Mineral Covering: Technology, Opportunities, Commercialization".- XIII Russian-Chinese Symposium "New Materials and Technologies" (Kazan,Russia, September 21-25, 2015) Report "Mineral coating: technology features,commercialization opportunities".14ConclusionsAs a result of the thesis, new data were obtained on the change in the surfacestructure, as well as on the mechanical properties of some structural materials(low-carbon steels, titanium and aluminum alloys) modified with ultradispersedmineral particles.When conducting structural studies it was found that the technology ofmineral coatings does not create a coating as such, but creates a modified layerwith a granular structure that differs from the bulk structure of the metal.
Surfacetreatment by technology creates a thin layer containing mineral particles,concentrating in pre-created microcavities. As a result, a modified layer with ahigh hardness and wear resistance is formed in the surface layer of the sample ofsteel or titanium alloy. Filling in the process of modification by ultradispersedparticles of microcracks and surface defects blocks their development during wearand deformation.The study of the mechanical properties of the surface of a titanium alloyVT6 modified by minerals, using the sclerometry method, showed that the wearresistance of the surface increased by more than 4 times compared with the surfacewithout modification.
Experimental data obtained by sclerometry minimizing theeffect of the substrate can be used later to calculate and construct models of themetal surface of minerals modified with ultradispersed particles.Investigation of the temperature dependences of the coefficient of friction ofsamples from steel modified by minerals in the range 30-140 0Сshowed that the coefficient of friction remains practically constant for sampleswith mineral coatings (increases by no more than 10% of the coefficient of frictionat room temperature), in contrast to the friction coefficient of unmodified samples,including hardened ones, for which its value increases more than by 50% for thesame tests.
The results of these studies can be used to predict the behavior of15various parts with mineral coatings during operation in various devices andmechanisms.In carrying out the work it was established that the degree of wear of thetoroid from alumina conjugated to disks of steel 12X13 with mineral coating whenrotating in water is below the level of registration of the degree of wear and cannotbe quantified in the experiment (water temperature T = 23 ° C, linear velocity v =0.1 m /s, the total displacement length s = 2 km). The value of the coefficient ofvolumetric wear of the alumina toroid, conjugated with mineral-coated discs whenrotating in water, is at least two orders of magnitude smaller than the values of thecoefficient of volume wear during rotation with uncoated discs.In the process of research, several applied problems have been solved thatmake it possible to use the technology of mineral coatings to increase the life ofparts used in the oil and gas industry enterprises, enterprises manufacturing shutoff valves and others.
Tribotechnical tests of shut-off valve simulators showed asignificant increase in wear resistance of mineral-coated samples (by 4-5 times) ascompared to the wear resistance of initial samples from various types of steel(20X13, steel 20, 45X steel). Samples-simulators showed no signs of setting,passed the plasticity test (2-angled bend with a deflection of 0.5 mm), corrosionresistance in a chamber of high humidity (temperature (40 ± 3) 0С, relativehumidity of ambient air (97 ± 3) %). The set of pipe samples nipple coupler madeof Magnadur 501 steel with a wear-resistant mineral coating successfullywithstood the planned number of screwing-unscrewing cycles (400 cycles), whichis more than an order of magnitude more than a set of samples from this steelwithout mineral coating (30 cycles).
The test certificates presented in the Appendixto the dissertation, commissioned by industrial enterprises, show that theapplication of mineral coating technology has an intersectoral coverage(metallurgy, shipbuilding, power engineering, mining, gas and oil production),potentially can be of considerable scale as on the socio-economic effect, and on theexport potential.
On the basis of the results of the study, it can be concluded that16mineral coatings are a promising technological tool for increasing the wearresistance of various parts, assemblies and mechanisms for use in variousindustries.17.
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