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Materials 2018, 11(2), 237; https://doi.org/10.3390/ma11020237

An Investigation of the Influence of Initial Roughness on the Friction and Wear Behavior of Ground Surfaces

1
Shanxi Precision Machining Key Laboratory, Taiyuan University of Technology, Yingze west street No. 79, Taiyuan 030024, China
2
Institute for Materials Testing, Materials Science and Strength of Materials (IMWF) University of Stuttgart, Pfaffenwaldring 32, Stuttgart D-70569, Germany
*
Author to whom correspondence should be addressed.
Received: 21 November 2017 / Revised: 28 January 2018 / Accepted: 29 January 2018 / Published: 4 February 2018
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Abstract

Friction and wear tests were performed on AISI 1045 steel specimens with different initial roughness parameters, machined by a creep-feed dry grinding process, to study the friction and wear behavior on a pin-on-disc tester in dry sliding conditions. Average surface roughness (Ra), root mean square (Rq), skewness (Rsk) and kurtosis (Rku) were involved in order to analyse the influence of the friction and wear behavior. The observations reveal that a surface with initial roughness parameters of higher Ra, Rq and Rku will lead to a longer initial-steady transition period in the sliding tests. The plastic deformation mainly concentrates in the depth of 20–50 μm under the worn surface and the critical plastic deformation is generated on the rough surface. For surfaces with large Ra, Rq, low Rsk and high Rku values, it is easy to lose the C element in, the reciprocating extrusion. View Full-Text
Keywords: surface roughness; friction; wear; plastic deformation surface roughness; friction; wear; plastic deformation
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Liang, G.; Schmauder, S.; Lyu, M.; Schneider, Y.; Zhang, C.; Han, Y. An Investigation of the Influence of Initial Roughness on the Friction and Wear Behavior of Ground Surfaces. Materials 2018, 11, 237.

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