A critical assessment of surface texturing for friction and wear improvement

Gachot, Carsten; Rosenkranz, Andreas; Hsu, Stephen M.; Costa, H.L.

doi:10.1016/j.wear.2016.11.020

Cited by 523 publications

(369 citation statements)

References 167 publications

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“…It is also consistent with the former results; that is, the anticlockwise rotation direction of the pin can provide better wear resistance than the clockwise rotation direction, under the conditions of this study. For the wet braking system, due to the microhydrodynamic lubrication effect of pits, the textured surface can offer the better tribological outcomes than its performance in dry wear conditions [25,26].…”

Section: Discussionmentioning

confidence: 99%

The Influence of Rotating Direction on the Tribological Behavior of Grey Cast Iron with Curve Distributed Pit Textured Surface

Sun

Xie

Kelly

et al. 2017

Mathematical Problems in Engineering

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To investigate the influence of surface features, in the form of pits, on the wear resistance of grey cast iron (GCI), a finite element model of the pin-on-disc friction system, with pits distributed in a curved radial direction, was developed using APDL programming and the tribological behavior of textured surfaces was studied. The influence of relative rotation direction between the disc and the pin on the thermal behavior of the friction system under dry wear conditions was researched. GCI and C30E steel samples with pit textured surfaces were manufactured using laser marking equipment and tested using a tribology wear testing rig. The mass losses were measured and the worn surfaces were characterized. The influence of different rotation directions on the tribological behavior of the pit textured surfaces was also investigated. The simulation and test results revealed that rotation direction was a crucial parameter in determining the tribological behavior of surfaces with these features, regardless of the material. Under the conditions tested, when the pin rotated anticlockwise, the samples showed better friction and wear behavior than when the pin rotated clockwise. These results can provide important guidance for the optimization of the design of heavy-load brake systems and other similar applications.

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Section: Discussionmentioning

confidence: 99%

The Influence of Rotating Direction on the Tribological Behavior of Grey Cast Iron with Curve Distributed Pit Textured Surface

Sun

Xie

Kelly

et al. 2017

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

“…Braun et al [10,11] studied the tribological behavior of steel with dimples ranging from 15 to 800 µm in diameter, and found the friction reduction of 80% was possible with the optimal diameter for certain sliding speeds. Gachot et al [12][13][14] discussed the effects of surface textures under the operative lubrication regimes in the Stribeck curve, and summarized the fabrication methods and friction-reducing mechanisms. Researchers also conducted numerous studies to confirm that textured surfaces can enhance anti-wear performance [15,16].…”

Section: Introductionmentioning

confidence: 99%

Nano Diesel Soot Particles Reduce Wear and Friction Performance Using an Oil Additive on a Laser Textured Surface

2018

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Tribological properties of nano diesel soot (DS) as an additive were investigated. Textures in linear radiating arrays were prepared on the surface of a spring-steel plate by laser radiation. The texture densities were 19.6%, 22.1%, and 44.2%, and the depth was 30 µm. The results indicated that the textured surface was interacted with additive favorably to improve its tribological performance. Friction coefficients and wear rates of textured surfaces with additive in oil were generally much lower compared to the original surface without additive. The higher area density of the textured surface with the additive in oil had the lowest friction coefficient, as low as 0.12, and also the minimum wear rate, as low as 1 × 10 3 µm/N·m in 100 • C, to be achievable. Such results can be attributed to the formation of the tribo-film and the storage function of the micro-dimple.

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“…Those patterns are typically of a periodic nature with feature sizes (spatial dimensions and depth) in the micron range and can be generated by different techniques such as laser patterning, lithography, embossing and others [6][7][8][9][10][11]. In this context, laser surface patterning has proven to be beneficial since this technique allows for efficient, fast, single-step and environment-friendly processing.…”

Section: Introductionmentioning

confidence: 99%

“…Considering mixed lubrication, those patterns can additionally store lubricant in order to induce a secondary oil effect and contribute to the build-up of additional hydrodynamic pressure [20][21][22][23][24]. In the case of hydrodynamic lubrication, the role of surface patterns is basically limited to modify the hydrodynamic pressure build-up [6][7][8]25,26]. Furthermore, lubrication regimes can be shifted to higher loads and/or lower velocities with the help of surface patterns [7,8,27,28].…”

Section: Introductionmentioning

confidence: 99%

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Low Friction and High Solid-Solid Contact Ratio—A Contradiction for Laser-Patterned Surfaces?

2017

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Abstract:Recording of Stribeck-like curves is a common way to study the effect of laser-patterned surfaces on the frictional efficiency. However, solely relying on the coefficient of friction when identifying the lubrication regime and the underlying working principles can be misleading. Consequently, a ball-on-disc tribometer was combined with an electrical resistivity circuit to simultaneously measure Stribeck-like curves and solid-solid contact ratios for polished and laser-patterned samples. Line-like surface patterns with different periodicities were produced by direct laser interference patterning on steel substrates (AISI304). The reference shows a Stribeck-like behavior well correlating with the contact ratios. The behavior deviates for high sliding velocities (high contact ratios) due to a loss of lubricant induced by centrifugal forces pulling the lubricant out of the contact zone. In contrast, the solid-solid contact ratio of the laser-patterned samples is around 80% for all sliding velocities. Those values can be explained by higher contact pressures and the structural depth induced by the surface topography which make a full separation of the surfaces unlikely. Despite those high values for the contact ratio, laser-patterning significantly reduces friction, which can be traced back to a reduced real contact area and the ability to store oil in the contact zone.

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A critical assessment of surface texturing for friction and wear improvement

Cited by 523 publications

References 167 publications

The Influence of Rotating Direction on the Tribological Behavior of Grey Cast Iron with Curve Distributed Pit Textured Surface

The Influence of Rotating Direction on the Tribological Behavior of Grey Cast Iron with Curve Distributed Pit Textured Surface

Nano Diesel Soot Particles Reduce Wear and Friction Performance Using an Oil Additive on a Laser Textured Surface

Low Friction and High Solid-Solid Contact Ratio—A Contradiction for Laser-Patterned Surfaces?

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