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Corresponding Author

Yasser S. Mohamed

Subject Area

Material Science and Engineering

Article Type

Original Study

Abstract

This manuscript introduces a new pin-on-plate tribometer established for a study of the tribological behavior of materials at a constant sliding speed. The originality of this test rig lies in its capability to perform six independent tests at the same time. Wear tests can be conducted with high reliability and low error thanks to the high rigidity of the machine. The reciprocating motion of the counterface was designed to be in an arc path. The tribometer has the facility of changing the applied load and the length of the wear path. The test machine can used to perform both dry and lubricated wear tests at room. Besides, the design allows to measure the sliding temperature of the test samples at contact with the counterface. The current study also reports the results of the first set of experiments. The test rig was used to evaluate the impact of counterface roughness on the wear rate of PTFE in dry sliding conditions. The obtained results demonstrated that within the range of roughness (Ra = 0.05 – 0.5 μm), the roughness of the metallic countersurface did not appear to play a significant role in the wear of the tested polymer.

Keywords

Tribometer; Wear; Surface roughness; Polytetrafluoroethylene PTFE.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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