The Paton Welding Journal, 2023, №09



2023 №09 (07)

DOI of Article 10.37434/tpwj2023.09.08

2023 №09 (01)

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The Paton Welding Journal, 2023, #9, 47-52 pages

Properties of coatings, deposited by multichamber detonation device and their application

O.V. Kolisnichenko, Yu.M. Tyurin

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev

Abstract
Coatings from WC–Co–Cr AMPERIT®554.074 powder were deposited using a multichamber detonation device. Investigations of coating microstructure and phase composition were conducted, using scanning electron microscopy and X-ray structural analysis. Dense coatings form at spraying by this method which consist of inclusions of tungsten carbide phases, uniformly distributed in Co–Cr matrix. Coating porosity is equal to ~0.2 %, microhardness is – 10.4 ± 1.2 GPa. Experience of application of multichamber detonation device for deposition of wear-resistant coatings from WC–Co–Cr powder is shown, both at the stage of part reconditioning and at design of components of various mechanisms. 12 Ref., 2 Tabl., 9 Fig.
Keywords: thermal spraying, detonation device, hard alloy, coating, microstructure, wear, porosity, hardness, industrial application

Received: 18.07.2023
Accepted: 09.10.2023

References

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