Application of Taguchi techniques to study friction and wear properties of MoS2 coatings deposited on laser textured surface

Segu, Dawit Zenebe; Kim, Jong-Hyoung; Choi, Si Geun; Jung, Yong-Sub; Kim, Seock-Sam

doi:10.1016/j.surfcoat.2013.06.009

Cited by 70 publications

(38 citation statements)

References 17 publications

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“…There is an increasing demand for improved performance and reliability of mechanical systems that use advanced materials and surface-engineering techniques, which would increase efficiency, conserve scarce material resources and reduce energy losses through reduction of friction [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…Laser surface texturing (LST) onto a sliding surface, which involves flat and smooth regions being interrupted by local depressions, has become a promising surface engineering process to improve the tribological performance of sliding contact surfaces [3]. The formation of patterned micro-dimples may affect hydrodynamic lubrication and load carrying capacity of the textured surface [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…The formation of patterned micro-dimples may affect hydrodynamic lubrication and load carrying capacity of the textured surface [4][5][6]. The dimples are expected to act as reservoirs of the fluid enhance hydrodynamic action that helps in reduction friction and at the same time they may trap wear particles also which is expected to reduce wear [3][4][5][6][7]. Furthermore, the dimples formed provide a micro-hydrodynamic bearing in cases of full or mixed lubrication to generate additional hydrodynamic pressure to increase the load-carrying capacity [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Friction control by multi-shape textured surface under pin-on-disc test

Segu

Hwang

2015

Tribology International

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Friction control by multi-shape textured surface under pin-on-disc test

Segu

Hwang

2015

Tribology International

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“…Solid lubricants meet some important and critical tribological needs due to the facts that they are chemically stable, preferably adhere strongly, can provide low and constant friction, and can be used in severe conditions [12]. In recent years, enormous efforts combining LST with incorporation of solid lubricant into microreservoirs have been made to refine the tribological properties [13][14][15][16][17]. The fundamental benefits of LST are to trap wear particles and to make reservoirs for lubricants capable of feeding the lubricant directly between the two contacting surfaces [13].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, enormous efforts combining LST with incorporation of solid lubricant into microreservoirs have been made to refine the tribological properties [13][14][15][16][17]. The fundamental benefits of LST are to trap wear particles and to make reservoirs for lubricants capable of feeding the lubricant directly between the two contacting surfaces [13]. By now, the solid lubricant films are mostly designed by using the methods of burnishing, sputter deposition, and so on.…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Laser Microtextured Surface Bonded With Composite Solid Lubricant at High Temperature

Hua

Sun

Zhang

et al. 2016

Journal of Tribology

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A combination technology of the solid lubricant and the laser surface texturing (LST) can significantly improve the tribological properties of friction pairs. The plate sample was textured by fiber laser and composite lubricant of polyimide (PI) and molybdenum disulfide (MoS 2 ) powders were filled in the microdimples. Sliding friction performances of micron-sized composite lubricant and nano-sized composite lubricant were investigated by ring-plate tribometer at temperatures ranging from room temperature (RT) to 400 C. On the one hand, the results of the micron-sized composite lubricant show that the friction coefficient of the textured surface filled with composite lubricant (TS) exhibits the lowest level and the highest stability compared to a textured surface without solid lubrication, smooth surface without lubrication, smooth surface burnished with a layer of composite solid lubricant. The better dimple density range is 35-46%. The friction coefficients of the sample surface filled with micron-composite solid lubricant with the texture density of 35% are maintained at a low level (about 0.1) at temperatures ranging from RT to 300 C. On the other hand, the results of the nano-sized composite lubricant show that these friction properties are better than those of MoS 2 -PI micron-sized composite. The friction coefficients of MoS 2 -PI-CNTs nano-sized composite solid lubricant are lower than those of the MoS 2 -PI composite lubricant at temperatures ranging from RT to 400 C. In addition, the possible mechanisms involving the synergetic effect of the surface texture and the solid lubricant are discussed in the present work.

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Taguchi Optimization of Electrolytic Plasma Hardening Process Parameters on Ti‐6Al‐4V Alloy: Microstructure and Mechanical Properties

Ayday,

Özsoy,

Yener

2023

Adv Eng Mater

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In this study it is investigated the effects of electrolytic plasma treatment (EPT) on the hardness distribution, wear resistance and surface morphologies of titanium alloy (Ti‐6Al‐4V) at three different thermal cycles (4‐5‐6 times). The microstructure was controlled by heat temperature and modification times of thermal cycles depending on EPT processing parameters. A novel technique to modify Ti‐6Al‐4V alloy by the process of EPT successfully occurred. The results showed that the phase transformation was shown as follows: fine α and β for the low thermal cycle → irregular martensite α’ for the high thermal cycle → complete zigzag martensite α’ for the max thermal cycle. The hardness was increased from 350±10HV0.05 to 530±10HV0.05 after the modification. Wear tests were conducted according to Taguchi L9 (3^3) orthogonal array. Three parameters (load, sliding speed, sample type) with three levels examined wear rate and coefficient of friction. Optimum levels were obtained by Taguchi analysis from the experimental results. In addition, analysis of variance (ANOVA) was performed to find the effectiveness of the parameters. The wear surfaces were analyzed by scanning electron microscope. After the analysis, the best result was obtained in 5 thermal cycle.This article is protected by copyright. All rights reserved.

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Application of Taguchi techniques to study friction and wear properties of MoS2 coatings deposited on laser textured surface

Cited by 70 publications

References 17 publications

Friction control by multi-shape textured surface under pin-on-disc test

Friction control by multi-shape textured surface under pin-on-disc test

Tribological Properties of Laser Microtextured Surface Bonded With Composite Solid Lubricant at High Temperature

Taguchi Optimization of Electrolytic Plasma Hardening Process Parameters on Ti‐6Al‐4V Alloy: Microstructure and Mechanical Properties

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