Tribological response of laser-textured steel pins with low-dimensional micrometric patterns

Fiaschi, Giulia; Lauro, Michele Di; Ballestrazzi, Antonio; Rota, Alberto; Biscarini, Fabio; Valeri, Sergio

doi:10.1016/j.triboint.2019.01.007

Cited by 14 publications

(4 citation statements)

References 46 publications

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“…The modified microstructure surfaces exhibited greater wear resistance by minimizing abrasion wear on the tribo-contact pairs [11]. Micro-dimples produce a hydrophobic effect on the tribo-contact pairs; laser dimple-textures have several beneficial impacts on frictional interactions [12]. In [13], the groove textures were created by laser texturing on stainless steel, and the effect of pulse durations ranging from journal.ump.edu.my/ijame ◄ nanoseconds to femtoseconds was investigated.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of Dimple-Texturing on the Tribological Performance of Hardened AISI H-13 Steel

Vignesh

Barik

2022

IJAME

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The fabrication of dimple-texture is essential for reducing friction and wear in frictional interaction pairs. The tribological characteristics of the frictional interaction pairs can be improved by controlling the dimple pattern, the depth to diameter ratio, and the area density ratio. In this study, the tribological characteristics of tungsten carbide discs with various dimple-texture patterns and hardened AISI H-13 steel pins are tested experimentally using a pin on disc wear tester to identify the wear mechanism. Laser marking technology was utilized to fabricate the dimple-textures such as circular arrays of the honeycomb pattern and spherical dimple-texture pattern with varying area density ratios. The impact of dimple-texture patterns is examined experimentally under dry testing conditions. Dimple-textured surfaces have a positive influence as compared to non-textured smooth surfaces. Particularly, the spherical dimple-textured pattern reduces frictional coefficient and wear rate by 45% and 51%, respectively, compared to non-textured smooth surfaces. The dimple-texture pattern and area density ratio control are essential features in dimple-texturing.

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Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of Dimple-Texturing on the Tribological Performance of Hardened AISI H-13 Steel

Vignesh

Barik

2022

IJAME

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“…A surface structure can increase the residence time of the lubricant in the contact area leading to a decrease of friction and wear [17,18]. By structuring the counter bodies, it was also shown that the coefficient of friction can be reduced [19].…”

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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“…Sube et al have created microimprints on the surface by mechanical embossing using a diamond stamp, significantly reducing the occurring friction against steel [10]. It has been shown that a modification of the surface topography on a length scale of several ten micrometers prepared by laser structuring or mechanical imprinting can efficiently reduce friction and wear [11][12][13][14][15][16][17][18][19]. 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.…”

Section: Introductionmentioning

confidence: 99%

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.

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Tribological response of laser-textured steel pins with low-dimensional micrometric patterns

Cited by 14 publications

References 46 publications

An Experimental Investigation of Dimple-Texturing on the Tribological Performance of Hardened AISI H-13 Steel

An Experimental Investigation of Dimple-Texturing on the Tribological Performance of Hardened AISI H-13 Steel

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

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

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