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Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena

The effect of adsorbed water layers in sliding phenomena has been widely recognized, but it has yet to be explained thoroughly after many years of research. Previous researches tend to explain the phenomena from chemical and qualitative viewpoints, thus physical viewpoint approaches with quantitativ...

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Main Authors: Hong, Wei Chee, Fukuda, Kanao, Kamis, Shahira Liza
Format: Conference or Workshop Item
Language:English
Published: 2023
Subjects:
Q Science (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/108461/1/KanaoFukuda2023_InfluencesofAtmosphericHumidityonSliding.pdf
http://eprints.utm.my/108461/
http://dx.doi.org/10.2474/trol.18.339
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spelling my.utm.1084612024-11-05T06:27:19Z http://eprints.utm.my/108461/ Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena Hong, Wei Chee Fukuda, Kanao Kamis, Shahira Liza Q Science (General) TA Engineering (General). Civil engineering (General) The effect of adsorbed water layers in sliding phenomena has been widely recognized, but it has yet to be explained thoroughly after many years of research. Previous researches tend to explain the phenomena from chemical and qualitative viewpoints, thus physical viewpoint approaches with quantitative evidence are necessary to complement the previous research works. Studies were done to estimate the thickness of adsorbed water layers in recent years to obtain quantitative evidence of the effect of adsorbed water layers. It was found that the thickness of the adsorbed water layer derived from atmospheric humidity could provide physical influences on sliding phenomena. The hypothesis in this study based on the Stribeck curve is; the friction coefficient may decrease significantly with the increase of sliding speed at high relative humidity (RH) compared to low RH. To verify the hypothesis, a pair of JIS SUS304 austenitic stainless steel balls were scratched against each other horizontally with a vertical overlapping distance of 80 µm at sliding speeds of 20, 200, and 2000 µm·s−1 in RH of 5, 55, and 95%. The experimental results supported the hypothesis as the friction coefficient for medium to high RH decreased significantly with increasing sliding speed while the friction coefficient decreases slightly at low RH. The friction coefficient decreases significantly at high sliding speed and RH. The possible physical effects of the adsorbed water layers were suggested. 2023 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/108461/1/KanaoFukuda2023_InfluencesofAtmosphericHumidityonSliding.pdf Hong, Wei Chee and Fukuda, Kanao and Kamis, Shahira Liza (2023) Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena. In: 9th International Tribology Conference, Fukuoka 2023, 25 September 2023 - 30 September 2023, Fukuoka, Japan. http://dx.doi.org/10.2474/trol.18.339
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic Q Science (General)
TA Engineering (General). Civil engineering (General)
spellingShingle Q Science (General)
TA Engineering (General). Civil engineering (General)
Hong, Wei Chee
Fukuda, Kanao
Kamis, Shahira Liza
Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
description The effect of adsorbed water layers in sliding phenomena has been widely recognized, but it has yet to be explained thoroughly after many years of research. Previous researches tend to explain the phenomena from chemical and qualitative viewpoints, thus physical viewpoint approaches with quantitative evidence are necessary to complement the previous research works. Studies were done to estimate the thickness of adsorbed water layers in recent years to obtain quantitative evidence of the effect of adsorbed water layers. It was found that the thickness of the adsorbed water layer derived from atmospheric humidity could provide physical influences on sliding phenomena. The hypothesis in this study based on the Stribeck curve is; the friction coefficient may decrease significantly with the increase of sliding speed at high relative humidity (RH) compared to low RH. To verify the hypothesis, a pair of JIS SUS304 austenitic stainless steel balls were scratched against each other horizontally with a vertical overlapping distance of 80 µm at sliding speeds of 20, 200, and 2000 µm·s−1 in RH of 5, 55, and 95%. The experimental results supported the hypothesis as the friction coefficient for medium to high RH decreased significantly with increasing sliding speed while the friction coefficient decreases slightly at low RH. The friction coefficient decreases significantly at high sliding speed and RH. The possible physical effects of the adsorbed water layers were suggested.
format Conference or Workshop Item
author Hong, Wei Chee
Fukuda, Kanao
Kamis, Shahira Liza
author_facet Hong, Wei Chee
Fukuda, Kanao
Kamis, Shahira Liza
author_sort Hong, Wei Chee
title Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
title_short Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
title_full Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
title_fullStr Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
title_full_unstemmed Influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
title_sort influences of atmospheric humidity on sliding speed characteristics of dry sliding phenomena
publishDate 2023
url http://eprints.utm.my/108461/1/KanaoFukuda2023_InfluencesofAtmosphericHumidityonSliding.pdf
http://eprints.utm.my/108461/
http://dx.doi.org/10.2474/trol.18.339
_version_ 1814932895099256832
score 13.211869

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