Tribological Properties and Acoustic Emissions of Some Thermoplastics Sliding Against SAE52100

[+] Author and Article Information
Habib S. Benabdallah

Department of Mechanical Engineering,  Royal Military College of Canada, PO Box 17000, Stn Forces, Kingston, Ontario, K7K 7B4, Canadabenabdallah-h@rmc.ca

J. Tribol 128(1), 96-102 (Nov 12, 2004) (7 pages) doi:10.1115/1.2000264 History: Received February 14, 2003; Revised November 12, 2004

Measurements were made of the dynamic friction; wear volume and acoustic signal (AE) of several thermoplastics rubbing against smooth SAE-52100 steel. Polyoxymethylene, polyamide, poly(amide-imide), polypropylene, Poly(vinyl chloride), polytetrafluoroethylene, and polyethylene, were investigated using pin-on-disk configuration. Sliding speeds ranged from 0.05 to 0.45 m∕s, and normal loads from 40 to 160 N (2–8 MPa) for sliding distances varying from 4 to 20 km. Orthogonal experimental design and analysis method was used to develop wear equations expressing wear volume as function of the operating parameters. Consistent relations were also found between the integrated AE signal over time and the wear volume as well as the friction work.

Copyright © 2006 by American Society of Mechanical Engineers
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Figure 1

Specific wear rate as function of PV for PP, POM, and Torlon

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Figure 2

Experimental and predicted wear volume as function of P for PTFE

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Figure 3

Acoustic emission signals as function of time for all tested plastics

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Figure 4

Relationship between the integrated AE signal and the wear volume

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Figure 5

Variation of COF and AE with the time for POM and HDPE

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Figure 6

Friction work as function of the integrated AE signal



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