Effects of solid lubricant and laser surface texturing on tribological behaviors of atmospheric plasma sprayed Al 2 O 3 -ZrO 2 composite coatings

Kim, Seung‐Ho; Jeong, Sanghoon; Kim, Sang Woo; Choi, J.; Cho, Sung-Hun; Kim, Bum Sung; Lee, Soo Wohn

doi:10.1016/j.ceramint.2017.04.073

Cited by 23 publications

(3 citation statements)

References 19 publications

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“…Qin et al (2015) reported that a much longer life of low friction was provided when the laser-textured Ti6Al4V substrate treated by plasma electrolytic oxidation process and then burnished with a thin MoS 2 film. Kim et al (2017) reported that the friction performance of the atmospheric plasmasprayed (APS) coatings was optimized when adding solid lubricants and LST processing under an oil lubricated condition.…”

Section: Introductionmentioning

confidence: 99%

Tribological performance and self-lubricating mechanism of the laser-textured surface filled with solid lubricant in rolling friction pair

Hua

Xie

Yin

et al. 2018

ILT

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Purpose This paper aims to find out the tribological performance and self-lubricating mechanism of the laser-textured surface filled with solid lubricant in rolling friction pair. Design/methodology/approach The textures on the surfaces of GCr15 bearing steel were produced by acousto-optic Q diode-pumped yttrium aluminum garnet laser with the technology of “single pulse one time, repeating at intervals” and filled with composite solid lubricant. The tribology tests were conducted on the MMW-1A universal friction and wear testing machine. Findings It was found that the solid-lubricated micro-textured surface can reduce the friction coefficient effectively. The MoS2/PI composite solid lubricant works better than the single MoS2 solid lubricant, and the ratio of PI/MoS2 + PI at 20 per cent is the best recipe. The friction coefficient of the sample surfaces decreases first and then increases with the increase in texture densities, and a texture density of 19.6 per cent has the best effect on friction reduction. The friction coefficient of the textured surfaces gradually decreases with the increase in both rational speed and load. For the same texture density, the friction coefficient of textured surfaces decreases slightly with the increase in diameter. Furthermore, the mechanism of “rolling-extrusion-accumulation” occurred on the textured surface can collect the solid lubricant, thereby, improve the effect of lubricating and anti-friction. Originality/value The results of the experimental studies demonstrated the application prospect of laser surfaces texturing combined with solid lubricant in rolling friction pair.

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Section: Introductionmentioning

confidence: 99%

Tribological performance and self-lubricating mechanism of the laser-textured surface filled with solid lubricant in rolling friction pair

Hua

Xie

Yin

et al. 2018

ILT

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“…15a and b) numerous grooves and furrows aligned in the direction of sliding, and wear debris adhered to the surface were observed. The existence of the wear debris and its participation in the friction sliding process on the sample surface suggested the friction form may be transformed from two-body wear (tested samples and the Al 2 O 3 counter ball sample) into three-body wear, which facilitates plastic deformation and wear damage, as suggested Kim et al [60]. The wear debris formed by two-body wear together with natural bone can act as a cutting tool between two contact surfaces.…”

Section: Resultsmentioning

confidence: 89%

The influence of laser texturing on the tribological behavior of titanium alloy Ti6Al4V in medical applications

Woźniak,

Bialas,

Adamiak

et al. 2024

Arch. Civ. Mech. Eng.

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This paper analyzes the tribological behavior of the Ti6Al4V ELI alloy subjected to laser texturization for medical purposes. Laser texturing enables one to observe specific patterns of the material surface at established depths. Microtexturing of the samples was performed using a 355 nm picosecond laser. The influence of the microtexturing process (depending on the process parameters) on the geometric parameters of the proposed laser texturing pattern was evaluated. Selected samples were subjected to tribological testing using the ball-on-plate technique in dry and lubricant-sliding methods (in Ringer solution). The wear properties were evaluated by comparing the coefficient friction, wear volumes, and wear ratio. A scanning electron microscope characterized the morphologies of the wear scar and the wear mechanism. The experimental results show that the surface texturing and the changes in microgrooves can reduce wear. The results indicate, that samples after laser texturing were characterized by 15% higher microhardness, compared to those in the initial state. It was found, a 26% reduction in friction coefficient and 29% in the wear volume compared to the smooth, untextured surface samples under lubricated conditions. The decrease in value of the coefficient friction and wear volume for the samples after the laser texturing process is an effect of synergistic of entrapped wear debris in micro-grooves and increased hardness for samples after laser textured.

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“…Laser surface texturing (LST) was recognized as an effective means of surface engineering to improve the tribological properties of sliding surfaces [14,15,16,17,18]. A combination of LST and solid lubricants was utilized to achieve friction reduction and extension on wear resistance life, as micro-dimples can reduce the contact area and protect lubricants in the pit from wear [19,20,21,22]. For example, Ripoll et al [21] and Hu et al [22] produced micro-dimple patterns on a Ti 6 Al 4 V alloy and coated MoS 2 film on textured surfaces (TS) to improve their tribological properties, and they observed a remarkable reduction in friction coefficient and an improvement in the lifetime of the MoS 2 film.…”

Section: Introductionmentioning

confidence: 99%

Wetting Behavior and Tribological Properties of Polymer Brushes on Laser-Textured Surface

et al. 2019

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Polymer brush layers can act as effective lubricants owing to their low friction and good controllability. However, their application to the field of tribology is limited by their poor wear resistance. This study proposes a strategy combining grafting and surface texturing to extend the service life of polymer brushes. Surface microstructure and chemical composition were measured through scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). Water contact angles were measured to evaluate the surface wettability of the grafted silicon-based surface texture. Results showed the distinct synergistic effect between polymer brushes and laser surface texturing (LST). The prepared polymer brushes on textured surface can be a powerful mechanism for friction reduction properties, which benefit from their strong hydration effect on the lubrication liquid and promote the formation of a local lubricating film. Moreover, the wear life of polymer brushes can be immensely extended, as micro-dimples on the textured surface can effectively protect the polymer brushes. This study presents a method to enhance the load-bearing capacity and wear resistance of the grafted surface of polymer brushes.

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Effects of solid lubricant and laser surface texturing on tribological behaviors of atmospheric plasma sprayed Al 2 O 3 -ZrO 2 composite coatings

Cited by 23 publications

References 19 publications

Tribological performance and self-lubricating mechanism of the laser-textured surface filled with solid lubricant in rolling friction pair

Tribological performance and self-lubricating mechanism of the laser-textured surface filled with solid lubricant in rolling friction pair

The influence of laser texturing on the tribological behavior of titanium alloy Ti6Al4V in medical applications

Wetting Behavior and Tribological Properties of Polymer Brushes on Laser-Textured Surface

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