Study of the effect of speed and load on wear mechanism of a plan/plan contact with the help of a strain gage dynamometer

Larbi, S.; Bilek, Ali; Meghlat, A.

doi:10.1051/epjconf/20100619006

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2018

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“…When the ball slides over the surface, the friction coefficient curve will present various vibration modes and the friction coefficient is not stable on the rough surface. Furthermore, it is reported in [ 42 ] that diverse surface textures could be a reason inducing the oscillation in sliding tests.…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2018

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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.

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Section: Resultsmentioning

confidence: 99%