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Open AccessArticle

The Effect of Disc Surface Topography on the Dry Gross Fretting Wear of an Equal-Hardness Steel Pair

1
EME Aero, Jasionka 954, 36-002 Jasionka, Poland
2
Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, Poland
*
Author to whom correspondence should be addressed.
Materials 2019, 12(19), 3250; https://doi.org/10.3390/ma12193250
Received: 9 September 2019 / Revised: 30 September 2019 / Accepted: 3 October 2019 / Published: 4 October 2019
(This article belongs to the Special Issue Tribology: Friction and Wear of Engineering Materials)
Experimental investigations were carried out with an Optimol SRV5 tribological tester in a flat-on-sphere scheme. The balls co-acted with the discs in a gross sliding fretting regime. The balls and discs were made from the same steel with a very similar hardness. Tests were conducted at 25–35% relative humidity, 30 °C, and a constant normal load and number of cycles (18,000). The discs had different textures after various machining treatments. It was found that the total wear level of the tribological assembly was proportional to the disc surface amplitude. The influence of the disc roughness on the coefficient of friction was evident only for the smallest stroke of 0.1 mm, and the frequency of oscillation affected this dependency. View Full-Text
Keywords: surface topography; fretting; wear; coefficient of friction surface topography; fretting; wear; coefficient of friction
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Lenart, A.; Pawlus, P.; Dzierwa, A. The Effect of Disc Surface Topography on the Dry Gross Fretting Wear of an Equal-Hardness Steel Pair. Materials 2019, 12, 3250.

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