Effect of Shape, Density, and an Array of Dimples on the Friction and Wear Performance of Laser Textured Bearing Steel under Dry Sliding

Kumar, Manish; Ranjan, Vinayak; Tyagi, Renu

doi:10.1007/s11665-020-04816-8

Cited by 27 publications

(18 citation statements)

References 22 publications

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“…As already observed by Kumar et al the effect of particle trapping is limited in time. Due to the relatively large surface stress and the absence of a lubricant in the tribological contact the structures are repeatedly clogged or, in the worst case, completely abraded [20]. The same behavior could be observed in these experiments.…”

Section: Discussionsupporting

confidence: 71%

“…µ = 0.70 to approx. µ = 0.55 [20]. Sube et al showed that it is possible to significantly reduce friction by combining surface structuring and a hard material layer.…”

Section: Discussionmentioning

confidence: 99%

“…In case of an abrasion dominated wear mechanism the main role is to capture wear debris inside the structures to remove it from the mechanical contact. Kumar et al showed that by microstructuring the surface abrasion particles are trapped and wear is reduced [20]. Furthermore, Kommer et.…”

Section: Introductionmentioning

confidence: 99%

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Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Schulz

Köhn

Kolb

et al. 2021

Preprint

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Steel surfaces have been patterned by laser surface texturing (LST) to create anisotropic microstructures with typical dimensions of a few 10 micrometers. The subsequent deposition of thin molybdenum nitride coatings by high power impulse magnetron sputtering (HiPIMS) leads to surfaces that conserve the surface microstructures and exhibit an extraordinarily large resistance against mechanical wear. Tribological experiments with steel counter bodies show a substantial influence of the relative orientation of structures and wear track on friction and wear. It is pointed out that the main effect is the removal of abrasion particles from the mechanical contact. Analogue experiments with alumina counter bodies that hardly provide wear particles show that the orientation effect is absent.

show abstract

Section: Discussionsupporting

confidence: 71%

“…µ = 0.70 to approx. µ = 0.55 [20]. Sube et al showed that it is possible to significantly reduce friction by combining surface structuring and a hard material layer.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Schulz

Köhn

Kolb

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Since then, other studies have reported lower friction [66][67][68][69][70][71][72][73] and reduced wear [66, 68-70, 72, 74, 75] on textured surfaces attributed to the ability of textures to trap wear debris. For instance, different textures (parallel and perpendicular grooves as well as dimples) on brass reduced friction after running-in and the corresponding wear rates for all textures in comparison to smooth brass ( Figure 1).…”

Section: Mechanisms For Improved Performance Under Dry Conditionsmentioning

confidence: 99%

Synergetic effects of surface texturing and solid lubricants to tailor friction and wear – A review

Rosenkranz

Costa

Baykara

et al. 2021

Tribology International

337

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Surface texturing and solid lubricants have demonstrated the ability to substantially reduce friction and wear under dry conditions. In recent decades, these two technologies have been combined to leverage the advantages of both for superior tribological performance. This review article first summarizes the state-of-the-art regarding surface texturing and solid lubricants, including soft metals, polytetrafluoroethylene, diamond-like carbon and 2D layered materials. Then, the synergy between surface textures and solid lubricants is discussed, with particular emphasis on the underlying mechanisms. Finally, gaps in the existing understanding of these synergies are identified and opportunities for future research are suggested.

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“…In the case of abrasion-dominated wear mechanisms, the main role is to capture wear debris inside the structures to remove it from the mechanical contact. Kumar et al showed that by microstructuring the surface, abrasion particles are trapped and wear is reduced [22]. Furthermore, Kommer et al found that the combination of structuring of the surface with subsequent deposition of a hard material layer additionally reduces wear.…”

Section: Introductionmentioning

confidence: 99%

Controlling Friction and Wear with Anisotropic Microstructures in MoN-Coated Surfaces

et al. 2021

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This study considers anisotropic microstructures with typical dimensions of a few 10 µm which have been created on steel surfaces by laser surface texturing (LST). It is shown that the subsequent deposition of thin molybdenum nitride coatings by high-power impulse magnetron sputtering (HiPIMS) leads to surfaces that conserve the surface microstructures and exhibit a remarkably large resistance against mechanical wear. Tribological experiments with steel counter bodies are substantially influenced by the relative orientation of the structures and the wear track. Both friction and wear are shown to be modified by more than 30%, with the main effect being the removal of abrasion particles from the mechanical contact. Experiments with alumina counter bodies that hardly provide wear particles show that the orientation has no effect on the abrasion of the counter body. The novelty of the article lies in the combination of MoN coatings with surface texturing.

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Effect of Shape, Density, and an Array of Dimples on the Friction and Wear Performance of Laser Textured Bearing Steel under Dry Sliding

Cited by 27 publications

References 22 publications

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Synergetic effects of surface texturing and solid lubricants to tailor friction and wear – A review

Controlling Friction and Wear with Anisotropic Microstructures in MoN-Coated Surfaces

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