Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Plasma-Electrolytic Nitrocarburizing of Medium Carbon Steel Surface on Friction and Wear in Pair with Tin-Lead Bronze

Version 1 : Received: 21 June 2023 / Approved: 22 June 2023 / Online: 22 June 2023 (11:37:34 CEST)

How to cite: Borisov, A.; Mukhacheva, T.; Kusmanov, S.; Suminov, I.; Meleshkin, Y.; Grigoriev, S. Effect of Plasma-Electrolytic Nitrocarburizing of Medium Carbon Steel Surface on Friction and Wear in Pair with Tin-Lead Bronze. Preprints 2023, 2023061608. https://doi.org/10.20944/preprints202306.1608.v1 Borisov, A.; Mukhacheva, T.; Kusmanov, S.; Suminov, I.; Meleshkin, Y.; Grigoriev, S. Effect of Plasma-Electrolytic Nitrocarburizing of Medium Carbon Steel Surface on Friction and Wear in Pair with Tin-Lead Bronze. Preprints 2023, 2023061608. https://doi.org/10.20944/preprints202306.1608.v1

Abstract

The possibility of increasing the resource of steel fingers working in tandem with bronze bushings by plasma-electrolytic nitrocarburizing of the surface of medium carbon steel is shown. The phase composition, microhardness, morphology and surface roughness were studied. Tribological tests were carried out under dry friction conditions according to the shaft-pad scheme. It has been established that plasma-electrolytic nitrocarburizing of the surface of medium carbon steel at a temperature of 700 °C for 5 minutes leads to a decrease in a friction coefficient by 2.3 times, weight wear of steel by 24.9 times, and bronze counterbody by 5.9 times. At the same time, the contact stiffness increases 2.6 times. The type of wear is fatigue with dry friction and plastic contact. Changes in tribological characteristics are associated with the high hardness of the hardened steel surface together with the influence of dispersed nitrides and iron carbonitrides distributed in it.

Keywords

plasma electrolyte nitrocarburizing; medium carbon steel; bronze; friction; wear; microhardness, roughness

Subject

Chemistry and Materials Science, Materials Science and Technology

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