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Multidimensional Design of the Technology of Strengthening of a Hard Alloy in a Hydrosol of Red Clay

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Inorganic Materials: Applied Research Aims and scope

Abstract

Results of the investigation of the tribotechnical properties of solid lubricant coatings obtained on VK6 hard alloy (94% WC + 6% Co) as a result of the thermohydrochemical treatment (THCT) in an aqueous disperse medium based on red clay are presented. Multidimensional optimization of the composition of the medium and temperature–time parameters of the process of THCT with respect to the friction coefficient of the obtained solid lubricant coatings is performed. By using mathematical models, process parameters–property diagrams are constructed. Processing using the optimum THCT mode makes it possible to decrease the friction coefficient of a hard-alloy surface 3.4-fold in comparison with the untreated surface under the conditions of the absence of a lubricant.

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  1. Belarusian National Technical University, 220013, Minsk, Belarus

    A. A. Shmatov

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  1. A. A. Shmatov
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Correspondence to A. A. Shmatov.

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Translated by E. Boltukhina

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Shmatov, A.A. Multidimensional Design of the Technology of Strengthening of a Hard Alloy in a Hydrosol of Red Clay. Inorg. Mater. Appl. Res. 11, 164–171 (2020). https://doi.org/10.1134/S2075113320010335

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