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Experimental Investigation of the Wear Behaviour of Coated Polymer Gears

A comprehensive experimental investigation of the wear behaviour of coated spur polymer gears made of POM is performed in this study. The three physical vapour deposition (PVD) coatings investigated were aluminium (Al), chromium (Cr), and chromium nitrite (CrN). Al was deposited in three process ste...

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Autores principales: Polanec, Brigita, Zupanič, Franc, Bončina, Tonica, Tašner, Frančišek, Glodež, Srečko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541529/
https://www.ncbi.nlm.nih.gov/pubmed/34685347
http://dx.doi.org/10.3390/polym13203588
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author Polanec, Brigita
Zupanič, Franc
Bončina, Tonica
Tašner, Frančišek
Glodež, Srečko
author_facet Polanec, Brigita
Zupanič, Franc
Bončina, Tonica
Tašner, Frančišek
Glodež, Srečko
author_sort Polanec, Brigita
collection PubMed
description A comprehensive experimental investigation of the wear behaviour of coated spur polymer gears made of POM is performed in this study. The three physical vapour deposition (PVD) coatings investigated were aluminium (Al), chromium (Cr), and chromium nitrite (CrN). Al was deposited in three process steps: By plasma activation, metallisation of Al by the magnetron sputtering process, and by plasma polymerisation. Cr deposition was performed in only one step, namely, the metallization of Cr by the magnetron sputtering process. The deposition of CrN was carried out in two steps: the first involved the metallization of Cr by the magnetron sputtering process while the second step, vapour deposition, involved the reactive metallisation of Cr with nitrogen, also by the magnetron sputtering process. The gears were tested on an in-house developed testing rig for different torques (16, 20, 24 and 30 Nm) and rotational speed of 1000 rpm. The duration of the experiments was set to 13 h, when the tooth thickness, and, consequently, the wear of the tooth flank was recorded. The experimental results showed that the influence of metallisation with aluminium, chromium, and chromium nitrite surface coatings on the wear behaviour of the analysed polymer gear is not significant. This is probably due to the fact that the analysed coatings were, in all cases, very thin (less than 500 nm), and therefore did not influence the wear resistance significantly. In that respect, an additional testing using thicker coatings should be applied in the further research work.
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spelling pubmed-85415292021-10-24 Experimental Investigation of the Wear Behaviour of Coated Polymer Gears Polanec, Brigita Zupanič, Franc Bončina, Tonica Tašner, Frančišek Glodež, Srečko Polymers (Basel) Article A comprehensive experimental investigation of the wear behaviour of coated spur polymer gears made of POM is performed in this study. The three physical vapour deposition (PVD) coatings investigated were aluminium (Al), chromium (Cr), and chromium nitrite (CrN). Al was deposited in three process steps: By plasma activation, metallisation of Al by the magnetron sputtering process, and by plasma polymerisation. Cr deposition was performed in only one step, namely, the metallization of Cr by the magnetron sputtering process. The deposition of CrN was carried out in two steps: the first involved the metallization of Cr by the magnetron sputtering process while the second step, vapour deposition, involved the reactive metallisation of Cr with nitrogen, also by the magnetron sputtering process. The gears were tested on an in-house developed testing rig for different torques (16, 20, 24 and 30 Nm) and rotational speed of 1000 rpm. The duration of the experiments was set to 13 h, when the tooth thickness, and, consequently, the wear of the tooth flank was recorded. The experimental results showed that the influence of metallisation with aluminium, chromium, and chromium nitrite surface coatings on the wear behaviour of the analysed polymer gear is not significant. This is probably due to the fact that the analysed coatings were, in all cases, very thin (less than 500 nm), and therefore did not influence the wear resistance significantly. In that respect, an additional testing using thicker coatings should be applied in the further research work. MDPI 2021-10-18 /pmc/articles/PMC8541529/ /pubmed/34685347 http://dx.doi.org/10.3390/polym13203588 Text en © 2021 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
Polanec, Brigita
Zupanič, Franc
Bončina, Tonica
Tašner, Frančišek
Glodež, Srečko
Experimental Investigation of the Wear Behaviour of Coated Polymer Gears
title Experimental Investigation of the Wear Behaviour of Coated Polymer Gears
title_full Experimental Investigation of the Wear Behaviour of Coated Polymer Gears
title_fullStr Experimental Investigation of the Wear Behaviour of Coated Polymer Gears
title_full_unstemmed Experimental Investigation of the Wear Behaviour of Coated Polymer Gears
title_short Experimental Investigation of the Wear Behaviour of Coated Polymer Gears
title_sort experimental investigation of the wear behaviour of coated polymer gears
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541529/
https://www.ncbi.nlm.nih.gov/pubmed/34685347
http://dx.doi.org/10.3390/polym13203588
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