Experimental and analytical thermal study of PTFE composite sliding against high carbon steel as a function of the surface roughness, sliding velocity and applied load

I. Tzanakis; M. Conte; M. Hadfield; Tadeusz Stolarski

doi:10.1016/j.wear.2013.02.011

Experimental and analytical thermal study of PTFE composite sliding against high carbon steel as a function of the surface roughness, sliding velocity and applied load

Abstract

This study investigates the contact temperatures caused by frictional heating of sliding parallel pairs. In this case the materials studied are a PTFE composite in contact with a high carbon steel plate. These materials are commonly used for industrial applications, in particular as the main contacting components within a scroll expander system. The expected contact temperature values are important to be quantified in order to predict failure mechanisms associated with excessive thermal effects caused by sliding friction. A rational and coherent interpretation of the thermal effects on the actual tribological contact is presented. Contact temperatures are monitored continuously using a high-precision infrared thermal imaging technique with a systematic variation in surface roughness of the high carbon steel material. These surface temperatures are investigated as a function of the friction coefficient, the sliding velocity and the applied load while the most influential parameter for the temperature rise is determined. Analytical results using conventional mathematical methodology are also produced. The analytical and experimental findings are then compared indicating interesting correlations within the macro-and micro-surface temperature regimes and the experimental conditions. Microscopic observations show that thermal effects can seriously affect fibres durability while transfer films formed across the steel counterpart can be beneficial for the operation of scroll systems under specific roughness and test conditions.

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Authors (4)

I. Tzanakis
- School of Design, Engineering and Computing, Bournemouth University Sustainable Design Research Centre
M. Conte
- IK4-Tekniker IK4-Tekniker
M. Hadfield
- School of Design, Engineering and Computing, Bournemouth University Sustainable Design Research Centre
Tadeusz Stolarski prof. dr hab. inż.

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DOI:: Digital Object Identifier (open in new tab) 10.1016/j.wear.2013.02.011
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Details

Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: WEAR no. 303, edition 1-2, pages 154 - 168,
ISSN: 0043-1648
Language:: English
Publication year:: 2013
Bibliographic description:: Tzanakis I., Conte M., Hadfield M., Stolarski T.: Experimental and analytical thermal study of PTFE composite sliding against high carbon steel as a function of the surface roughness, sliding velocity and applied load// WEAR. -Vol. 303, iss. 1-2 (2013), s.154-168
DOI:: Digital Object Identifier (open in new tab) 10.1016/j.wear.2013.02.011
Verified by:: Gdańsk University of Technology