Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods

The authors of this paper have attempted to improve the quality of surface layers applied to steel elements of machine parts constituting friction couples. The main goal of the research was to investigate an electrospark alloying method process for obtaining abrasion-resistant tribological coatings...

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Autores principales:	Oksana P. Gaponova, Bogdan Antoszewski, Viacheslav B. Tarelnyk, Piotr Kurp, Oleksandr M. Myslyvchenko, Nataliia V. Tarelnyk
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	electrospark alloying sulfomolybdenum coatings tribology Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d0b11129777e41e2aac59710d7eb93b5
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spelling	oai:doaj.org-article:d0b11129777e41e2aac59710d7eb93b52021-11-11T17:54:11ZAnalysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods10.3390/ma142163321996-1944https://doaj.org/article/d0b11129777e41e2aac59710d7eb93b52021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6332https://doaj.org/toc/1996-1944The authors of this paper have attempted to improve the quality of surface layers applied to steel elements of machine parts constituting friction couples. The main goal of the research was to investigate an electrospark alloying method process for obtaining abrasion-resistant tribological coatings containing molybdenum disulfide on a steel surface. A substance in the form of sulfur ointment with a sulfur content of 33.3% was applied on the surfaces of C22 and C40 steel specimens. In order to determine the influence of the energy parameters of ESA equipment on the quality parameters of coatings, the ESA process was carried out using a molybdenum electrode with discharge energies Wp = 0.13; Wp = 0.55; Wp = 3.4 J. The following tests were carried out on specimens with such coatings: metallographic analysis, microhardness tests, surface roughness, and local X-ray diffraction microanalysis. The experiments revealed that sulfomolybdenum coatings consist of four zones with different mechanical properties. Depending on the discharge energy and the substrate material, the hardness of these zones varies from approx. 1100 to over 10,000 MPa. Differences in the distribution of, among others, sulfur and molybdenum in the obtained coatings, as well as differences in the microstructure of the observed coatings, were observed.Oksana P. GaponovaBogdan AntoszewskiViacheslav B. TarelnykPiotr KurpOleksandr M. MyslyvchenkoNataliia V. TarelnykMDPI AGarticleelectrospark alloyingsulfomolybdenum coatingstribologyTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6332, p 6332 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	electrospark alloying sulfomolybdenum coatings tribology Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	electrospark alloying sulfomolybdenum coatings tribology Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Oksana P. Gaponova Bogdan Antoszewski Viacheslav B. Tarelnyk Piotr Kurp Oleksandr M. Myslyvchenko Nataliia V. Tarelnyk Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods
description	The authors of this paper have attempted to improve the quality of surface layers applied to steel elements of machine parts constituting friction couples. The main goal of the research was to investigate an electrospark alloying method process for obtaining abrasion-resistant tribological coatings containing molybdenum disulfide on a steel surface. A substance in the form of sulfur ointment with a sulfur content of 33.3% was applied on the surfaces of C22 and C40 steel specimens. In order to determine the influence of the energy parameters of ESA equipment on the quality parameters of coatings, the ESA process was carried out using a molybdenum electrode with discharge energies Wp = 0.13; Wp = 0.55; Wp = 3.4 J. The following tests were carried out on specimens with such coatings: metallographic analysis, microhardness tests, surface roughness, and local X-ray diffraction microanalysis. The experiments revealed that sulfomolybdenum coatings consist of four zones with different mechanical properties. Depending on the discharge energy and the substrate material, the hardness of these zones varies from approx. 1100 to over 10,000 MPa. Differences in the distribution of, among others, sulfur and molybdenum in the obtained coatings, as well as differences in the microstructure of the observed coatings, were observed.
format	article
author	Oksana P. Gaponova Bogdan Antoszewski Viacheslav B. Tarelnyk Piotr Kurp Oleksandr M. Myslyvchenko Nataliia V. Tarelnyk
author_facet	Oksana P. Gaponova Bogdan Antoszewski Viacheslav B. Tarelnyk Piotr Kurp Oleksandr M. Myslyvchenko Nataliia V. Tarelnyk
author_sort	Oksana P. Gaponova
title	Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods
title_short	Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods
title_full	Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods
title_fullStr	Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods
title_full_unstemmed	Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods
title_sort	analysis of the quality of sulfomolybdenum coatings obtained by electrospark alloying methods
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d0b11129777e41e2aac59710d7eb93b5
work_keys_str_mv	AT oksanapgaponova analysisofthequalityofsulfomolybdenumcoatingsobtainedbyelectrosparkalloyingmethods AT bogdanantoszewski analysisofthequalityofsulfomolybdenumcoatingsobtainedbyelectrosparkalloyingmethods AT viacheslavbtarelnyk analysisofthequalityofsulfomolybdenumcoatingsobtainedbyelectrosparkalloyingmethods AT piotrkurp analysisofthequalityofsulfomolybdenumcoatingsobtainedbyelectrosparkalloyingmethods AT oleksandrmmyslyvchenko analysisofthequalityofsulfomolybdenumcoatingsobtainedbyelectrosparkalloyingmethods AT nataliiavtarelnyk analysisofthequalityofsulfomolybdenumcoatingsobtainedbyelectrosparkalloyingmethods
_version_	1718432027543339008

Analysis of the Quality of Sulfomolybdenum Coatings Obtained by Electrospark Alloying Methods

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