Open Access

ARTICLE

Influence of deposition voltage on tribological properties of W-WS₂ coatings deposited by electrospark deposition

T. X. Liu^a, C. A. Guo^a,*, F. S. Lu^b, X. Y. Zhang^a,c, L. Zhang^b, Z. J. Wang^a, Z. Y. Xu^a, G. L. Zhu^a

a School of Equipment Engineering, Shenyang Ligong University, Shenyang 110159, China
b North Huaan Industry Group Co. Ltd, Qiqihaer 161046, China
c School of Service, Yingkou Modern Service College, Yingkou 115000, China

* Corresponding Author:

Chalcogenide Letters 2023, 20(10), 741-749. https://doi.org/10.15251/CL.2023.2010.741

Received 04 August 2023; Accepted 19 October 2023;

Abstract

Electrospark deposition coatings were prepared with different deposition voltage on CrNi3MoVA steel substrates by using a W-WS₂ sintered electrode and their tribological properties were investigated. The microhardness, roughness and tribological properties of the coatings were tested by using Vickers hardness tester, confocal laser scanning microscope and tribometer, and the morphologies, composition and phase structure were obtained by utilizing scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDS) and X-ray diffraction(XRD). The results showed that with the increase of deposition voltage, the hardness and roughness of the coatings increase. The coatings remarkably increase the tribological properties of CrNi3MoVA steel, and among the three coatings deposited at 40 V, 60 V and 80 V, the coating deposited at 60 V has the smallest friction coefficient and the best wear resistance.

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Keywords

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