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Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation

The aim of the research was to evaluate the influence of the initial roughness of a steel pin cooperating with a graphite ring—dry and wet—on the mechanism of sliding layer formation. A ring–pin friction pair was used for the study, where the rings were made of expanded graphite, while the pins were...

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Autores principales: Rewolińska, Aleksandra, Perz, Karolina, Kinal, Grzegorz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8198408/
https://www.ncbi.nlm.nih.gov/pubmed/34070928
http://dx.doi.org/10.3390/ma14112960
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author Rewolińska, Aleksandra
Perz, Karolina
Kinal, Grzegorz
author_facet Rewolińska, Aleksandra
Perz, Karolina
Kinal, Grzegorz
author_sort Rewolińska, Aleksandra
collection PubMed
description The aim of the research was to evaluate the influence of the initial roughness of a steel pin cooperating with a graphite ring—dry and wet—on the mechanism of sliding layer formation. A ring–pin friction pair was used for the study, where the rings were made of expanded graphite, while the pins were made of acid-resistant steel. In the first case, the steel pin interacted with a dry graphite ring, and in the second case, the graphite rings were moist. To determine the effect of initial surface roughness, the pins were divided into three roughness groups. To determine changes in surface geometry due to material transfer, the Ra and Rz parameters were measured. This project investigated how the initial roughness value of the steel surface pin cooperating with expanded graphite influences the formation of the sliding layer. Increasing the initial roughness of the steel surface interacting with the graphite contributes to faster layer formation and reduced roughness. The state of the expanded graphite—dry and wet—influences the formation of the sliding layer of graphite—a wet graphite component causes a faster smoothing of the steel surface. The running time of the wear apparatus has an effect on the resulting layer. The highest roughness group is the most favorable from the viewpoint of sliding layer formation.
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spelling pubmed-81984082021-06-14 Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation Rewolińska, Aleksandra Perz, Karolina Kinal, Grzegorz Materials (Basel) Article The aim of the research was to evaluate the influence of the initial roughness of a steel pin cooperating with a graphite ring—dry and wet—on the mechanism of sliding layer formation. A ring–pin friction pair was used for the study, where the rings were made of expanded graphite, while the pins were made of acid-resistant steel. In the first case, the steel pin interacted with a dry graphite ring, and in the second case, the graphite rings were moist. To determine the effect of initial surface roughness, the pins were divided into three roughness groups. To determine changes in surface geometry due to material transfer, the Ra and Rz parameters were measured. This project investigated how the initial roughness value of the steel surface pin cooperating with expanded graphite influences the formation of the sliding layer. Increasing the initial roughness of the steel surface interacting with the graphite contributes to faster layer formation and reduced roughness. The state of the expanded graphite—dry and wet—influences the formation of the sliding layer of graphite—a wet graphite component causes a faster smoothing of the steel surface. The running time of the wear apparatus has an effect on the resulting layer. The highest roughness group is the most favorable from the viewpoint of sliding layer formation. MDPI 2021-05-30 /pmc/articles/PMC8198408/ /pubmed/34070928 http://dx.doi.org/10.3390/ma14112960 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
Rewolińska, Aleksandra
Perz, Karolina
Kinal, Grzegorz
Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation
title Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation
title_full Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation
title_fullStr Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation
title_full_unstemmed Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation
title_short Effect of Steel Surface Roughness and Expanded Graphite Condition on Sliding Layer Formation
title_sort effect of steel surface roughness and expanded graphite condition on sliding layer formation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8198408/
https://www.ncbi.nlm.nih.gov/pubmed/34070928
http://dx.doi.org/10.3390/ma14112960
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