Khrystyna Khrushchyk

Thermally Initiated Structural Transformations in the Temperature Range (624–643) ± 1 K for Amorphous Metal Alloy Al87Y4Gd1Ni8 and Influence on Mechanical Properties

Khrystyna Khrushchyk, Paweł Świec, Yurii Kulyk, Krzysztof Aniołek et autres

Amorphous metal alloys (AMAs) are metastable materials that are characterized by good mechanical properties and corrosion properties. It is known that with certain thermal modifications, these properties improve or lose their value. The purpose of this research work is to investigate the …

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Hybrid solder joints: Morphology and mechanical properties of lead-free Sn-3.5Ag/Cu solder joints with Ni-coated ceramic nanoparticles

A. Yakymovych, Khrystyna Khrushchyk, Irina Wodak, Yu. Plevachuk et autres

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Short-Term Annealing Effect on Hydrogen Evolution Activity of Amorphous Al87Y4Gd1Ni4Fe4

Khrystyna Khrushchyk, Julian Kubisztal, Krzysztof Aniołek, Paweł Świec et autres

This work investigates the structural evolution and electrocatalytic activity of the amorphous metal alloy Al87Y4Gd1Ni4Fe4 during short-term annealing and its effect on the kinetics of the hydrogen evolution reaction (HER) in 1 M KOH. It is shown that a 5 min heat …

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The Effect of Short-Term Annealing of the Amorphous Metal Alloy Al87Y4Gd1Ni8 on Surface Morphology and Electrochemical Properties

Khrystyna Khrushchyk, Julian Kubisztal, Katarzyna Balin, Krzysztof Aniołek et autres

Amorphous metal alloys (AMAs) are characterized by good mechanical and electrochemical properties. However, due to crystallization processes occurring at higher temperatures (Ta ˃ 600 K), these properties may deteriorate. The aim of this work was to investigate the effects of short-term annealing …

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CORROSION RESISTANCE OF THERMOMODIFIED AMORPHOUS ALLOY Al87Y4Gd1Ni8 IN THE TEMPERATURE RANGE 624-643 К

Khrystyna Khrushchyk, Marta CHAVA, Veronika PIHEL, Julian Kubisztal et autres

In this work, the changes in the chemical composition of the surface of the amorphous metal alloy Al87Y4Gd1Ni8 as a result of isothermal annealing for two minutes in the air atmosphere at temperatures T1 = 624±2, T2 = 633±2, T3 = 643±2 …

Effect of Short Heat Treatment of Amorphous Metal Alloy on Decolorization Dye Mendola Blue

Khrystyna Khrushchyk, Katarzyna Balin, Vasyl Kordan, Sylwia Golba et autres

It was established that the change in the structure of the amorphous metal alloy (AMA) as a result of heat treatment of the amorphous metal alloy Al 87 Gd 5 Ni 4 Fe 4 at T = 645±1 K significantly affects the …

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Influence of annealing on mechanical properties of alloys of Al-REM-Ni(Fe)

Khrystyna Khrushchyk, L. М. Boichyshyn, Vasyl Kordan

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PASSIVATION OXIDATION OF THE SURFACE OF AMA Al87Ni8Y5 IN THE PRESENCE OF OXYGEN-CONTAINING INHIBITORS

Khrystyna Khrushchyk, L. М. Boichyshyn, Oksana SAPATSINSKA

Досліджено корозійну тривкість аморфного металевого сплаву (АМС) Al87Ni8Y5 у розчині 0,5 М натрій хлориду.Методом потенціометрії з'ясовано, що самочинне окиснення поверхні в присутності KMnO4 та K2Cr2O7 концентрацією 4ꞏ10 -3 моль/л відбувається зі зміщенням поверхневого потенціалу в анодний бік.Методом вольтамперометрії визначено потенціали та густину …

Physico-chemical Characteristics of Components as a Factor in the Formation of Nanoamorphous Structure in the Al87RE5Ni8(Fe) System

Khrystyna Khrushchyk, Mariia Lopachak, L. М. Boichyshyn, Nataliya Pandiak et autres

In this work, by using theoretical and experimental methods, three main factors of al-based AMS phase transformations are determined: atomic radius difference (δ), mixing entropy (ASmix), electronegativity difference (Aχ), valence electron concentration (VEC) for amorphous metal alloys based on Aluminum.

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MODIFICATION OF AMORPHOUS ALLOYS BASED ON ALUMINUM BY OLIGOMERIC COATINGS

Khrystyna Khrushchyk, L. М. Boichyshyn

Львів, Україна, е-mail:

Microhardness of the amorphous and nanostructured alloys system Al87 (Y, Gd)5Ni8 as electrodes for hydrogen evolution

Khrystyna Khrushchyk, Mariia Lopachak, Т. H. Hula, L. М. Boichyshyn

It was investigated the processes of hydrogen evolution on aluminum amorphous and nanostructured electrodes Al87Y5Ni8, Al87Y4Gd1Ni8, Al87Gd5Ni8 in 1 M KOH alkaline solution. By electron microscopy method it was analysed the electrodes surface and found elemental composition before and after hydrogen evolution …

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