Publications on the project |
011 Method for producing of solid coating on surface of metalic article |
Authors: | M.O. Vasylyev, V.E. Panarin, S.I. Sidorenko, S.M. Voloshko, A.P. Burmak | |
Summary: | The invention relates to a technological process of depositing hard protective coatings onto metals and can find an application in mechanical engineering, for example, for making machine elements from light alloys in aircraft and space industry.
The method of deposition of hard coatings onto the surface of fabricated metal products includes a preliminary preparation of the surface by using an ultrasonic impact treatment method to produce severe plastic deformation and obtain a nanocrystalline strengthened state of the surface followed by deposition of a hard coating onto it by the cathode-arc vacuum deposition method.
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Keywords: | hard coatings, severe plastic deformation | |
Edition: | | | | 2012,
,Ukrainian |
011 Mechanochemical oxidation of the surface of metallic alloys under the action of severe plastic deformation. |
Authors: | M.A. Vasylyev, S.M. Voloshko, L.F. Yatsenko | |
Summary: | The purpose of this review consists in the consideration of mechanochemical processes, particularly, mechanochemical oxidation of the surface of different materials under the severe plastic deformation exposure. The nature of mechanochemical reactions with the formation of the oxide film at the mechanical exposure, particularly during the processes of friction and wear of materials, is considered. As shown, the increase of the mechanochemical activity of surface layers of metal alloys during the different mechanical treatments is associated, first of all, with the accumulation of structural defects (point ones, dislocations), the formation of juvenile surfaces, amorphous phases, etc. The effect of mechanochemical oxygen interaction with the surface of titanium and aluminium alloys under the exposure of ultrasonic impact treatment in the air is revealed. The mechanism of mechanochemical synthesis of strong oxide layer is suggested, and the kinetics of the surface oxidation under such type of severe plastic deformation is studied. | |
Keywords: | mechanochemistry, mechanochemical oxidation, metal alloys, severe plastic deformation, structural defects | |
Edition: | Usp.Fiz.Met. | | | 2014,
79-100,Russian |
011 Generation of the Al(111) surface defects under bombardment of low energy Ar+ ions |
Authors: | M. A. Vasylyev, I. N.Makeeva, V. A Tinkov, S.M.Voloshko | |
Summary: | Dose dependence of generation and annealing of point defects induced by the bombardment of Al(111) single-crystal surface by Ar+ ions with energy of 600 eV in extra-high vacuum is studied in detail using the method of low-energy electron diffraction. Possibility of analysis of changes in intensity of diffraction reflexes of low-energy electrons directly during ion bombardment that excludes annealing effect at subsequent holding at room temperature is shown. Based on analysis of diffraction reflexes, values of activation energy of point defects are obtained. | |
Keywords: | LEED, point defects, ion bombardment, Al surface, single-crystal, ions bombardment. | |
Edition: | Metallofiz. Noveishie Tekhnol | | | 2014,
1371-1383,Ukrainian |
011 Structure and Properties of Vacuum-Arc TiN-Coating on the D16 Alloy Surface |
Authors: | M.A. Vasylyev, V.E. Panarin, I.N. Makeieva, S.M. Voloshko | |
Summary: | High strength nanocrystalline TiN coating was applied on the polished surface of the industrial aluminum alloy D16 disc-like sumples (after natural aging) in vacuum-arc setting "Bulat-6". For cleaning and activation of the substrate surface the wide-plasma source Ar+ ions with the Penning discharge cell type was designed. The dependence of the structure, microhardness and tribotechnical characteristics and the corrosion rate on the main deposition parameters was investigated. | |
Keywords: | nanocrystalline TiN-coating, vacuum сathodic-arc deposition, low energy inert gas ion bombardment, Al-based alloys, Penning-type ion source. | |
Edition: | Metyallofiz. Noveishie Tekhnol. | | | 2014,
1101-1112,Ukrainian |
011 Low temperature vacuum-arc synthesis of nanostruktural nitride coatings onto the Al-based alloys |
Authors: | M.A. Vasylyev, V.E. Panarin, I.N. Makeieva, N.E. Svavilnyi | |
Summary: | Technology of the low temperature deposition of nitride nanostruktural coatings onto the Al-based alloys surface is developed using the industrial-size commercial cathode vacuum arc plasma deposition machine of type „Bulat”. Technology allows to carry out deposition of nitride nanostructural coatings onto the Al-based alloys surface at the temperature of 80-100ºС. Сoatings are characterized high corrosion resistance and wearproofness. | |
Keywords: | low temperature deposition of nanostruktural coatings, Al-based alloys. cathodic vacuum-arc deposinion | |
Edition: | Nanosize systems and nanomaterials: state and perspective of researches development in Ukraine | | | 2014,
25-30,Russian |
The events in the framework of the project |
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011 1. Physics of nanostructures Purpose: Expected results:Issue of new types of products: methods, theories Stage 1: Stage 2: Stage 3: Stage 4: Stage 5:
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