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Article
Microdistortions, Hardness, and Young’s Modulus of Multicomponent Bcc Solid Solutions
The phase composition, type II microstresses, and coherent scattering domains (CSDs) of multicomponent (medium- and high-entropy) bcc solid solutions with an average electron concentration, Csd, ranging from 4.6 ...
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Article
Structure and Mechanical Properties of TiAlSiY Vacuum-Arc Coatings Deposited in Nitrogen Atmosphere
The effect of a negative bias potential applied to the substrate on elemental composition, structure, and mechanical properties of vacuum-arc TiAlSiY nitride coatings is investigated by different methods. It i...
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Article
Formation of Superhard State of the TiZrHfNbTaYN Vacuum–Arc High-Entropy Coating
Complex studies of the formation of the superhard state in the TiZrHfNbTaYN vacuum-arc high-entropy coating were carried out. Based on the approach of the structural surface engineering, the regularities of th...
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Article
Conditions of Attaining a Superhard State at a Critical Thickness of Nanolayers in Multiperiodic Vacuum-Arc Plasma Deposited Nitride Coatings
Possible mechanisms of the interfacial interaction in multiperiodic (bilayer) compositions at critical thicknesses (as small as below 10 nm) of conjugated phases have been studied for the first time using stru...
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Article
Effect of bias voltage and nitrogen pressure on the structure and properties of vacuum-arc (Mo + Ti6%Si)N coatings
Effect of deposition conditions in reactive nitrogen atmosphere on the growth morphology, phase composition, structure, and mechanical characteristics (microhardness) of vacuum-arc multilayer coatings obtained...
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Article
Influence of the high-temperature annealing on the structure and mechanical properties of vacuum–arc coatings from Mo/(Ti + 6 wt % Si)N
Scanning electron microscopy with energy dispersive element microanalysis, X-ray structural analysis, and microindentation were used to study the effect of the deposition conditions in a reactive nitrogen atmo...
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Article
Structure of vacuum Cu–Ta condensates
The structure of vacuum condensate foils (separated from substrates) of the binary Cu–Ta system has been investigated both in the initial condensed state and after annealings at temperatures of up to 1000°С. I...
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Article
The influence of nonstoichiometry on elastic characteristics of metastable β-WC1–x phase in ion plasma condensates
The dependence of elastic moduli for different directions on the nonstoichiometry with respect to carbon atoms in octahedral interstices of face-centered cubic crystalline lattice is established for the first ...
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Article
Possibilities of structural engineering in multilayer vacuum-arc ZrN/CrN coatings by varying the nanolayer thickness and application of a bias potential
The possibility of attaining an superhard state in multilayer vacuum-arc ZrN/CrN coatings with a layer thickness of about 20 nm has been established. It has been shown that the application of a constant negati...
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Article
Recrystallization and formation of spheroidal gold particles in amorphous-like AlN–TiB2–TiSi2 coatings after annealing and subsequent implantation
The recrystallization of the structure of an X-ray amorphous AlN–TiB2–TiSi2 coating containing short-range order regions with characteristic sizes of 0.8–1.0 nm has been performed using a negative gold ion (Au–) ...
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Article
Physical and mechanical properties of (Ti–Zr–Nb)N coatings fabricated by vacuum-arc deposition
By vacuum-arc evaporation of a multielement Ti + Zr + Nb cathode in a nitrogen atmosphere, (Ti–Zr–Nb)N coatings are deposited on steel substrates. The coatings are characterized by a columnar structure with na...
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Article
Structure engineering in vacuum-arc-deposited coatings of the MoN–CrN system
The possibilities of structure engineering in multilayer coatings of the MoN–CrN system with relatively low heats of formation of component transition metal nitrides are demonstrated by varying pressure P ...
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Article
Structural Engineering of Vacuum-ARC Multiperiod Coatings
The possibilities of structural engineering in multiperiod TiN/Ti, TiN/CrN, TiN/MoN and TiN/ZrN systems are presented. Three principal parameters determining the structural state and properties of the coatings...
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Article
Effect of the deposition parameters on the phase–structure state, hardness, and tribological characteristics of Mo2N/CrN vacuum–arc multilayer coatings
A complex study has been performed of the effect of the technological parameters, which are responsible for the energy states of deposited particles, on the elemental, phase and structure compositions, hardnes...
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Article
Nb–Al–N thin films: Structural transition from nanocrystalline solid solution nc-(Nb,Al)N into nanocomposite nc-(Nb, Al)N/a–AlN
Structures and mechanical properties of thin films of the Nb–Al–N system produced by magnetron sputtering of targets from niobium and aluminum in the Ar–N2 atmosphere have been studied. It has been shown that as ...
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Article
The microstructure of a multielement nanostructured (TiZrHfVNbTa)N coating and its resistance to irradiation with Au– ions
The formation of a phase with a FCC lattice of the NaCl structure type is observed following the deposition of a multielement nanostructured (TiZrHfVNbTa)N coating. An increase in pressure results in a change ...
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Article
Structure and properties of nanostructured NbN and Nb-Si-N films depending on the conditions of deposition: Experiment and theory
The first results of studying the phase–structural state, properties, sizes of nanograins, hardness, and microstresses in nanocomposite NbN and Nb-Si-N films are given. The investigated films were obtained by ...
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Article
Structural features and physico-mechanical properties of AlN-TiB2-TiSi2 amorphous-like coatings
The coating of the AlN-TiB2-TiSi2 system has been produced by the magnetron sputtering of a target. At the high-temperature (900 and 1300°C) actions the coating crystallization to form crystallites of sizes 11–25...
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Article
Geometrical thermodynamics analysis of the change in the Gibbs energy during the nonequilibrium solidification of eutectic alloys
Geometrical thermodynamics is used to analyze the possible dependences of the Gibbs energy on temperature and component concentration in the two-phase region during nonequilibrium solidification of eutectic al...
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Article
Influence of implantation of Au− ions on the microstructure and mechanical properties of the nanostructured multielement (TiZrHf VNbTa)N coating
It has been found that the phase with the fcc lattice of the NaCl structural type is formed due to the vacuum-arc deposition of the nanostructured multicomponent (TiZrHfVNbTa)N coating. Implantation of negativ...
