Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase

Coatings were produced on the EP741NP nickel alloy substrates by electrospark deposition (ESD) in argon using an MoSi(2)-MoB-HfB(2) electrode. In situ high-resolution transmission electron microscopy and X-ray diffraction analysis studies have identified the temperature above which the strengthening...

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Autores principales: Zamulaeva, Evgenia Igorevna, Sheveyko, Alexander Nikolaevich, Kaplanskii, Yuri Yurievich, Levashov, Evgeny Alexandrovich
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9413846/
https://www.ncbi.nlm.nih.gov/pubmed/36013749
http://dx.doi.org/10.3390/ma15165613
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author Zamulaeva, Evgenia Igorevna
Sheveyko, Alexander Nikolaevich
Kaplanskii, Yuri Yurievich
Levashov, Evgeny Alexandrovich
author_facet Zamulaeva, Evgenia Igorevna
Sheveyko, Alexander Nikolaevich
Kaplanskii, Yuri Yurievich
Levashov, Evgeny Alexandrovich
author_sort Zamulaeva, Evgenia Igorevna
collection PubMed
description Coatings were produced on the EP741NP nickel alloy substrates by electrospark deposition (ESD) in argon using an MoSi(2)-MoB-HfB(2) electrode. In situ high-resolution transmission electron microscopy and X-ray diffraction analysis studies have identified the temperature above which the strengthening Mo(2)Ni(3)Si Laves phase is formed in the coatings. At 25 °C, the coatings with a predominant content of the Laves phase are characterized by enhanced wear resistance, as well as a lower coefficient of friction compared to the non-annealed coatings containing binary silicides. At 700 °C, the EP741NP substrate was characterized by the lowest friction coefficient (Ktr = 0.35), and its wear was approximately at the same level as the wear of both coatings.
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spelling pubmed-94138462022-08-27 Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase Zamulaeva, Evgenia Igorevna Sheveyko, Alexander Nikolaevich Kaplanskii, Yuri Yurievich Levashov, Evgeny Alexandrovich Materials (Basel) Article Coatings were produced on the EP741NP nickel alloy substrates by electrospark deposition (ESD) in argon using an MoSi(2)-MoB-HfB(2) electrode. In situ high-resolution transmission electron microscopy and X-ray diffraction analysis studies have identified the temperature above which the strengthening Mo(2)Ni(3)Si Laves phase is formed in the coatings. At 25 °C, the coatings with a predominant content of the Laves phase are characterized by enhanced wear resistance, as well as a lower coefficient of friction compared to the non-annealed coatings containing binary silicides. At 700 °C, the EP741NP substrate was characterized by the lowest friction coefficient (Ktr = 0.35), and its wear was approximately at the same level as the wear of both coatings. MDPI 2022-08-16 /pmc/articles/PMC9413846/ /pubmed/36013749 http://dx.doi.org/10.3390/ma15165613 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zamulaeva, Evgenia Igorevna
Sheveyko, Alexander Nikolaevich
Kaplanskii, Yuri Yurievich
Levashov, Evgeny Alexandrovich
Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase
title Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase
title_full Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase
title_fullStr Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase
title_full_unstemmed Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase
title_short Structure Formation and Tribological Properties of Mo-Si-B-Hf Electrospark Coatings Based on Mo(2)Ni(3)Si Laves Phase
title_sort structure formation and tribological properties of mo-si-b-hf electrospark coatings based on mo(2)ni(3)si laves phase
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9413846/
https://www.ncbi.nlm.nih.gov/pubmed/36013749
http://dx.doi.org/10.3390/ma15165613
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