Friction and wear of MoS2 films on laser textured steel surfaces

Rapoport, L.; Moshkovich, A.; Perfilyev, V.; Lapsker, I.; Halperin, G.; Itovich, Yan; Etsion, I.

doi:10.1016/j.surfcoat.2007.12.009

Cited by 183 publications

(70 citation statements)

References 14 publications

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“…Solid lubricants stored in the dimples can be released and thus the lifetime of rubbed surfaces can be longer. Rapoport and co-workers [18,19] studied friction and wear of MoS2 films on lasertextured steel surfaces. Friction tests were performed with ball-on-flat device.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Oil Pockets Shape and Distribution on Seizure Resistance in Lubricated Sliding

et al. 2009

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The results of experimental investigations on the effect of the oil pockets existence on seizure resistance of sliding elements are presented. Seizure tests were conducted with block-on-ring apparatus at increasing pressure. The stationary block (counter specimen) contacted the rotating steel ring (specimen). The tested assemblies were lubricated by oil L-AN 46, which was heated to 30°C before each experiment. The sliding was unidirectional. The block was a part of a bearing sleeve-hardened EN-GJS 400-15 cast iron with a hardness value of 50 HRC. The ring samples, 35 mm in diameter, were made from hardened 42CrMo4 steel of hardness 32 HRC. The friction force and temperature near the contact zone were measured during the tests. Some variants of specimen surfaces were created by burnishing technique. They were characterised by the oil pocket density, the holes depth, length, and width. The oil pockets existence of area density of 10% on the ring surface improved seizure resistance of the sliding pair steel-cast iron for speed of 0.27 m/s. The pit shape and orientation are very important, too.

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Section: Introductionmentioning

confidence: 99%

The Effect of Oil Pockets Shape and Distribution on Seizure Resistance in Lubricated Sliding

et al. 2009

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“…As far as dry contacts are concerned, fewer publications compared to lubricated contacts deal with benefits of surface texturing. Most of the published works are related to the entrapment of wear debris or reducing the contact area, for example [15]. The major influencing surface texture parameters are the geometry of surface textures (shape), the area density, the aspect ratio and the relative orientation of the surface textures compared to sliding direction [16].…”

Section: The Influence Of the Tool Surface Texture On Friction And Thmentioning

confidence: 99%

The Influence of the Tool Surface Texture on Friction and the Surface Layers Properties of Formed Component

Šugárová¹,

Sugar²,

Frnčík³

et al. 2018

Adv. Sci. Technol. Res. J.

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The morphological texturing of forming tool surfaces has a high potential to reduce friction and tool wear and also has an impact on the surface layers properties of formed material. In order to understand the effect of different types of tool textures, produced by nanosecond fibre laser, on the tribological conditions at the interface tool-formed material and on the integrity of formed part surface layers, the series of experimental investigations have been carried out. The coefficient of friction for different texture parameters (individual feature shape, including the depth profile of the cavities and orientation of the features relative to the material flow) was evaluated via a Ring Test and the surface layers integrity of the formed material (surface roughness and subsurface micro hardness) was also experimentally analysed. The results showed a positive effect of surface texturing on the friction coefficients and the strain hardening of test samples material. Application of surface texture consisting of dimple-like depressions arranged in radial layout contributed to the most significant friction reduction of about 40%. On the other hand, this surface texture contributed to the increase of surface roughness parameters, Ra parameter increased from 0.49 μm to 2.19 μm and the Rz parameter increased from 0.99 μm to 16.79 μm.

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“…In the tribological community, many research groups around the world study the influence of laser-patterned surfaces on the frictional response. As far as dry friction is concerned, most of this work is related to the trapping of wear debris in order to avoid third body interaction and reducing the contact area (for example, lowered stiction in magnetic storage disks) [17][18][19][20][21]. Youquiang et al investigated the influence of laser-patterned surfaces in frictional pairs Si 3 N 4 /TiC sliding against steel.…”

Section: Introductionmentioning

confidence: 99%

Direct Laser Interference Patterning: Tailoring of Contact Area for Frictional and Antibacterial Properties

et al. 2016

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Abstract:Surface functionalization by topographic micro-and nano-structures in order to achieve unique properties, like super-hydrophobicity or ultrahigh light absorption, is a common strategy in nature. In this paper, direct laser interference patterning (DLIP) is presented as a promising tool allowing for the generation of such surface patterns on technical surfaces in order to mimic these biological surfaces and effects. Friction optimization and antibacterial effects by DLIP are exemplarily described. Topographic surface patterns on the micro-and nano-scale demonstrated a significant reduction in the coefficient of friction and bacterial adhesion. It was shown that in both cases, the control of the contact area between surfaces or between surface and bacteria is of utmost importance.

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Friction and wear of MoS2 films on laser textured steel surfaces

Cited by 183 publications

References 14 publications

The Effect of Oil Pockets Shape and Distribution on Seizure Resistance in Lubricated Sliding

The Effect of Oil Pockets Shape and Distribution on Seizure Resistance in Lubricated Sliding

The Influence of the Tool Surface Texture on Friction and the Surface Layers Properties of Formed Component

Direct Laser Interference Patterning: Tailoring of Contact Area for Frictional and Antibacterial Properties

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