Search Results - "Krapivka, M. O."

The Influence of Different Factors on Physicomechanical Properties of High Entropy Alloys with fcc Lattice by Gorban, V. F., Firstov, S. A., Krapivka, M. O.

“…The influence of electron concentration, mixing enthalpy, and dimensional mismatch on the lattice parameter, elastic modulus, and normalized hardness of fcc…”
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The Structure Formation and Hardness of High-Entropy Alloy Coatings Obtained by Electrospark Deposition by Myslyvchenko, O.M., Gaponova, O.P., Tarelnyk, V.B., Krapivka, M. O.

“…This paper examines the use of high-entropy alloys (HEAs) as materials for electrospark deposition (ESD). This method is known to produce high-quality…”
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Mechanical and Tribological Properties of Cast Monocarbides and Multicomponent High-Entropy Carbides by Horban, V. F., Krapivka, M. O., Firstov, S. O., Myslyvchenko, O. M., Zakiev, I. M., Samelyuk, A. O.

“…The mechanical and tribological properties of cast monocarbides and multicomponent high-entropy carbides produced by vacuum arc melting using starting…”
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Influence of Various Factors on the Properties of Solid-Soluble High-Entropy Alloys Based on BCC and FCC Phases by Gorban, V. F., Firstov, S. O., Krapivka, M. O., Samelyuk, A. V., Kurylenko, D. V.

“…We study the influence of electron concentration, lattice distortion, and phase ratio on the hardness, elasticity modulus, and normalized hardness of…”
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Base Alloy Concept in the Development of High-Entropy Materials by Krapivka, M. O., Myslyvchenko, O. M., Karpets, M. V.

“…The requirements to be met by a high-entropy alloy to be used as a base one for the development of new high-entropy materials have been formulated. Four alloys…”
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The Effect of Composition on the Formation of a BCC Approximant in Ti–Cr–Al–Si–O Alloys by Firstov, S.A., Gorban, V. F., Karpets, M. V., Krapivka, M. O., Rokytska, O. A., Samelyuk, A. V.

“…The microstructure, phase composition, and mechanical properties of Ti–Cr–Al–Si–O alloys in ascast state and after annealing at 800°C have been studied. The…”
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Formation Conditions and Properties of High-Entropy Alloys Creating σ-Phase by Gorban, V. F., Krapivka, M. O., Myslyvchenko, O. M.

“…High-entropy alloys (HEA) based on the renewal of elements of the V–IX groups of the Periodic Table, which are capable of forming σ-phase with each other, are…”
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High-Temperature Phase Transformations in Multicomponent Fecocrnival Alloy by Karpets, M. V., Makarenko, O. S., Gorban’, V. F., Krapivka, M. O., Rokitska, O. A., Makarenko, S. Yu

“…The phase transformations proceeding in as-cast high-entropy FeCoCrNiVAl alloy are studied using high-temperature in situ X-ray diffraction in a helium…”
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High-Temperature Oxidation of High-Entropy Alcrfeconimnx Alloys by Rokytska, O. A., Karpets, M. V., Yakubiv, M. I., Krapivka, M. O., Samelyuk, A. V., Naumenko, M. P.

“…The evolution of phase composition and thermal oxidation behavior of high-entropy AlCrFeCoNiMn x alloys ( x = 0.5 and 1) during long-term oxidation at 900°C…”
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Influence of Boron on the Structure and Physicomechanical Properties of Ti30Zr25Hf15Nb20Ta10 High-Entropy Alloy by Myslyvchenko, O. M., Gorban’, V. F., Samelyuk, A. V., Krapivka, M. O.

“…By the arc-melting method, we obtain a high-entropy boride by adding boron powder to the Ti 30 Zr 25 Hf 15 Nb 20 Ta 10 alloy. The data of X-ray phase…”
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Strength and Plasticity of Cast Solid-Soluble High-Entropy Alloys by Gorban’, V. F., Krapivka, M. O., Firstov, S. O., Verbylo, D. G., Kurylenko, D. V.

“…The strength properties of cast solid-solution high-entropy alloys based on bcc and fcc lattices in the temperature range from -70 to 900°C have been…”
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Structural State of Cast High-Entropy Alloys with F.C.C. Lattice and Its Influence on the Hardness Characteristics by Myslyvchenko, O. M., Gorban’, V. F., Krapivka, M. O.

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Features of High-Temperature Oxidation of High-Entropy AlCrFe3CoNiCu Alloy by Karpets, M. V., Gorban, V. F., Rokitska, O. A., Krapivka, M. O., Makarenko, E. S., Samelyuk, A. V.

“…The paper examines how the scale forms on the AlCrFe 3 CoNiCu alloy when oxidized at 900°C for 50 h and how high-temperature annealing influences the structure…”
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Influence of Boron on the Structure and Physicomechanical Properties of Ti.sub.30Zr.sub.25Hf.sub.15Nb.sub.20Ta.sub.10 High-Entropy Alloy by Myslyvchenko, O. M, Gorban', V. F, Samelyuk, A. V, Krapivka, M. O

“…By the arc-melting method, we obtain a high-entropy boride by adding boron powder to the Ti.sub.30Zr.sub.25Hf.sub.15Nb.sub.20Ta.sub.10 alloy. The data of X-ray…”
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High-Temperature Oxidation of High-Entropy Alcrfeconimn.sub.x Alloys by Rokytska, O. A, Karpets, M. V, Yakubiv, M. I, Krapivka, M. O, Samelyuk, A. V, Naumenko, M. P

“…The evolution of phase composition and thermal oxidation behavior of high-entropy AlCrFeCoNiMn.sub.x alloys (x = 0.5 and 1) during long-term oxidation at 900°C…”
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Structural State of High-Entropy Fe.sub.40-xNiCoCrAl.sub.x Alloys in High-Temperature Oxidation by Karpets, M. V, Rokytska, O. A, Yakubiv, M. I, Gorban, V. F, Krapivka, M. O, Samelyuk, A. V

“…The evolution of phase composition and mechanical properties and the formation of oxide layers on Fe.sub.40-xNiCoCrAl.sub.x (x = 5 and 10 at.%) alloys in…”
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Structural State of High-Entropy Fe40–xNiCoCrAlx Alloys in High-Temperature Oxidation by Karpets, M. V., Rokytska, O. A., Yakubiv, M. I., Gorban, V. F., Krapivka, M. O., Samelyuk, A. V.

“…The evolution of phase composition and mechanical properties and the formation of oxide layers on Fe 40–x NiCoCrAl x (x = 5 and 10 at.%) alloys in long-term…”
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High-Entropy Superhard Coatings Based on the AlTiCrVNbMo Alloy by Gorban’, V. F., Andreev, A. A., Krapivka, M. O., Stolbovoy, V. A., Karpets, M. V., Firstov, S. A., Chikrizhov, A. M.

“…Coatings that consisted of the high-entropy AlTiCrVNbMo alloy were obtained by ion sputtering in plasma of compressed vacuum-arc discharge. The hardness of…”
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Thermoactivation Analysis of Temperature Dependence of a Flow Stress in Solid Solutions with a B.C.C. Lattice by Firstov, S. O., Rogul, T. G., Krapivka, M. O., Chugunova, S. I.

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Features of High-Temperature Oxidation of High-Entropy AlCrFe.sub.3CoNiCu Alloy by Karpets, M. V, Gorban, V. F, Rokitska, O. A, Krapivka, M. O, Makarenko, E. S, Samelyuk, A. V

“…The paper examines how the scale forms on the AlCrFe.sub.3CoNiCu alloy when oxidized at 900°C for 50 h and how high-temperature annealing influences the…”
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