Issues »  Volume 48, Issue 4

Investigation of the Possibility of Cast Production of Hard- and Wear-Resistant Alloyed Iron–Carbon and ‘High-Entropy’ Alloys Using the CGM Process

I. A. Nebozhak$^{1}$, V. D. Babiuk$^{1}$, R. A. Sergiienko$^{1}$, Ye. A. Zhydkov$^{1}$, Ie. M. Dzevin$^{2}$, O. V. Derev’yanko$^{3}$, I. A. Shalevska$^{1}$, T. M. Chevychelova$^{3}$, V. P. Shkolyarenko$^{1}$, O. Yo. Shinsky$^{1}$, A. M. Verkhovliuk$^{1}$

$^{1}$Physico-Technological Institute of Metals and Alloys, N.A.S. of Ukraine, 34/1 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$G. V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{3}$I. M. Frantsevich Institute for Problems in Materials Science, N.A.S. of Ukraine, 3 Omeljan Pritsak Str., UA-03142 Kyiv, Ukraine

Received: 28.05.2025; final version - 15.10.2025. Download: PDF

It is presented the description of the testing method of alloyed Fe–C alloys and ‘high-entropy’ alloys (HEAs) for wear under dry friction conditions and data of laboratory equipment. For comparison with alloyed steels and cast irons, test samples of HEAs are obtained using the cast by gas model (CGM) process, and, thus, the possibility of its cast production is proven in practice. The structural features of the test castings are identified, and their hardness is determined on the Brinell’s scale. The tribotechnical properties of the cast samples are also investigated, and it is established experimentally that these characteristics are not affected by their hardness, which is determined on the Brinell’s scale. The dependences of the slide friction force and the slide friction coefficient of the pair ‘cast (liner)–counter body (shaft)’ on the friction path are analysed, and functional relations of the type Iq = f(τ) and iq = ϕ(τ) are derived, which describe analytically how the wear and wear rate of the test material change, respectively, on an arbitrary segment of the time interval. The microstructure of the of cast iron is characteristic of the microstructure of alloyed cast irons with special properties, and the microstructure of cast steel samples depends on microalloying and the regime of their heat treatment. The main structural components of the experimental HEAs are single-phase (b.c.c., f.c.c.) and multiphase (b.c.c. + f.c.c.) solid solutions, which further determine their properties. Graphical interpretation and mathematical processing of experimental data show that the structure and properties of the obtained HEAs primarily determine its chemical composition.

Key words: ‘high-entropy’ alloys, cast, wear, sliding friction coefficient, counter body, hardness, tribotechnical properties, wear rate.

URL: https://mfint.imp.kiev.ua/en/abstract/v48/i04/0383.html

DOI: https://doi.org/10.15407/mfint.48.04.0383

PACS: 61.66.Dk, 61.72.Ff, 62.20.Qp, 64.70.dj, 81.05.Bx, 81.40.Pq

Citation: I. A. Nebozhak, V. D. Babiuk, R. A. Sergiienko, Ye. A. Zhydkov, Ie. M. Dzevin, O. V. Derev’yanko, I. A. Shalevska, T. M. Chevychelova, V. P. Shkolyarenko, O. Yo. Shinsky, and A. M. Verkhovliuk, Investigation of the Possibility of Cast Production of Hard- and Wear-Resistant Alloyed Iron–Carbon and ‘High-Entropy’ Alloys Using the CGM Process, Metallofiz. Noveishie Tekhnol., 48, No. 4: 383–406 (2026)

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