Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/11161
Title: Peculiarities associated with testing polyetheretherketone (PEEK) in a model rolling contact
Authors: Stolarski, TA
Gawarkiewicz, R
Keywords: Polymer;Viscoelastic;Fatigue wear;Rolling contact
Issue Date: 2015
Publisher: Elsevier
Citation: Tribology International, 81: 9 - 18, (2015)
Abstract: Commonly used four-ball testing configuration when used to investigate rolling contact behavior of polyetheretherketone (PEEK) produced some unexpected peculiarities, namely direct contact between ceramic balls. Direct contact between lower three balls is normally not expected to take place when elastic materials (ferrous or ceramics) are tested. However, due to the viscoelastic nature of PEEK surface damage of the ceramic balls were observed leading to the production of wear debris which in turn facilitated premature failure of PEEK components of the assembly. It is postulated that caution is required when using the four-ball testing configuration to assess rolling contact performance of viscoelastic materials, such as engineering polymers.
URI: http://www.sciencedirect.com/science/article/pii/S0301679X14002783
http://bura.brunel.ac.uk/handle/2438/11161
DOI: http://dx.doi.org/10.1016/j.triboint.2014.07.018
ISSN: 0301-679X
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