Effects of surface texturing and kind of lubricant on the coefficient of friction at ambient and elevated temperatures

The effect of steel disc surface texturing on dry gross fretting in a ball-on-disc configuration was studied. Dimples were created with abrasive jet machining. The tribological performance of sliding pairs, steel–steel and steel–ceramics, was experimentally studied. The character of surface texturing effect was related to the dominant wear type. During steel–steel contact, the presence of dimples on disc surfaces could lead to increases in wear and friction. However, the escape of wear debris into dimples could result in reductions of friction and wear in the steel–ceramics configuration.

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“…The average distance between dimple centers was 0.5 mm. This method was applied in the previous research [1,30,31].…”

Section: Methodsmentioning

confidence: 99%

The Effect of Surface Texturing on Dry Gross Fretting

Lenart¹,

Pawlus

Woś

et al. 2018

Lubricants

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“…Under these circumstances, the contact area of the friction pair cannot be filled with lubricating oil, as this will cause equipment failure and unnecessary economic loss [7][8][9][10]. In recent years, the tribological property of a friction pair in the case of starved lubrication has attracted widespread attention from researchers [11,12].…”

Section: Introductionmentioning

confidence: 99%

Wear Behavior of Medium-Carbon Steel with Different Laser-Textured Densities under Starved Lubrication

et al. 2020

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Five densities of laser-ablated micro-pits were fabricated onto medium-carbon steel surfaces based on the coupling effect of the biological surface. The effects of the surface textures on the wear behavior were investigated by sliding wear tests under starved lubrication. The results show that compared with the smooth sample, the biomimetic samples could effectively reduce friction and wear, and the tribological performance of the textured surfaces is closely related to the density of the bionic units. The equivalent stress distribution of the specimens was simulated by the finite element method. A uniform stress distribution is beneficial for effectively reducing the generation of wear cracks.

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“…Yu et al [16] and Chen et al [17] studied the hydrodynamic performance of triangular dimples, and the surface texturing was effective in reducing friction. Moreover, the lubrication and friction reduction properties of the surface texture are related to the lubrication conditions [18,19].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the effect of surface groove micro‐texturing on lubrication characteristics

Gao

Chen

2020

Micro & Nano Letters

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This study investigated the effect of surface groove micro-texturing on hydrodynamic lubrication characteristics. All textured samples were processed by laser; non-textured reference samples were also created for comparison. Four types of surface groove patterns with different groove angles and groove depths were utilised. Different rotational speeds and gaps were used in the experiment to explain the relationship between the load-carrying capacity and the groove texture parameters under different conditions. The results suggested that the load-carrying capacity was greatly influenced by the operational conditions and that the samples with surface groove textures generated a larger hydrodynamic lift force than the non-textured samples.

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Effects of surface texturing and kind of lubricant on the coefficient of friction at ambient and elevated temperatures

Cited by 26 publications

References 27 publications

The Effect of Surface Texturing on Dry Gross Fretting

The Effect of Surface Texturing on Dry Gross Fretting

Wear Behavior of Medium-Carbon Steel with Different Laser-Textured Densities under Starved Lubrication

Experimental study of the effect of surface groove micro‐texturing on lubrication characteristics

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