Effects of sliding velocity and ambient temperature on the friction and wear of a boundary-lubricated, multi-layered DLC coating

Kim, Dong-Wook; Kim, Kyung-Woong

doi:10.1016/j.wear.2014.04.002

Cited by 38 publications

(23 citation statements)

References 40 publications

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“…A similar behavior was observed by Kim and his team 26 in multilayered W-DLC coating sliding against AISI 52100 steel balls in the presence of SAE 5W20 fully formulated lubricant rich in GMO. When temperature was increased from 27 to 160°C in steps, improvement in friction performance of the contact was observed due to the increase in the extent of graphitization and enhanced tribochemical interaction between lubricant additives and interacting surfaces.…”

Section: Temperaturesupporting

confidence: 83%

“…To further enhance the load carrying capacity of DLC coatings and equal distribution of load, hybrid type known as multilayered DLC (ML-DLC) coating is also used in industrial applications. 26,27 ML-DLC coatings (a-C:H/W-DLC, a-C/W-DLC, VTiN, etc.) comprised of very thin alternate layers of both nondoped and doped DLC coatings stacked together to combine the advantages of both types in a single coating.…”

Section: Types Of Dlc Coatingsmentioning

confidence: 99%

“…30,44 A similar behavior also exists between wear coefficient and applied load, whereas, opposite is true for sliding speed. 26,79 Zaidi and his team 81 studied the effect of sliding speed and normal load on tribological characteristics of a-C:H coatings in vacuum under dry conditions. They found an indirect relation of sliding speed and normal load with coefficient of friction.…”

Section: Sliding Speed and Loadmentioning

confidence: 99%

See 2 more Smart Citations

Influence of intrinsic and extrinsic conditions on the tribological characteristics of diamond-like carbon coatings: A review

et al. 2016

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Tribological performance of industrial applications involving boundary lubrication regime can be improved by depositing surface coatings such as diamond-like carbon (DLC) on the interacting surfaces. DLCs are considered as hard coatings with unique combination of properties which results in minimizing the friction induced energy and material losses especially under starved lubrication conditions. In spite of high wear-resistance and ultralow friction coefficients, there are a lot of factors that can directly influence the tribological characteristics of DLC coatings. Although, many studies were conducted to comprehend the effects of intrinsic/extrinsic conditions on tribological behavior of these coatings, still there is a lack of understanding due to contradictory remarks. Therefore, there is a need to rearrange the published data in an organized manner for logical continuation of research. In this paper, a brief introduction of DLC coatings is presented followed by detailed discussion on conditions that can directly influence their tribological properties.

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Section: Temperaturesupporting

confidence: 83%

Section: Types Of Dlc Coatingsmentioning

confidence: 99%

Section: Sliding Speed and Loadmentioning

confidence: 99%

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Influence of intrinsic and extrinsic conditions on the tribological characteristics of diamond-like carbon coatings: A review

et al. 2016

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“…Apart from lubricating composition, the operating parameters, including speed, load, temperature and topography of surface contact [18][19][20][21], are other important aspects affecting the material's lubrication performance. Zhu et al [22] and Tyagiet et al [23] discussed the influence of velocity and load on the frictional behavior of Ni 3 Algraphene and Nickel-alloy-silver-hBN composites.…”

Section: Introductionmentioning

confidence: 99%

Effects of sliding speed and testing temperature on the tribological behavior of a nickel-alloy based solid-lubricating composite

Zhen

Zhu

Cheng

et al. 2016

Wear

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“…Cao et al investigated the friction and wear behaviour of Cu/Cu-MoS2 selflubricating coating applied on high speed steel, in which they found that the coated high speed steel had better tribological properties [2]. Kim et al performed ball-on-disk tests to examine the effects of sliding velocity and temperature on friction and wear of a multi-layered DLC coating, and found that the temperature rise led to a decrease in wear rates but an increase in friction coefficient, while the increased sliding velocity could reduce the wear rate and friction coefficient [3]. Hol et al developed a physical based friction model which characterised the friction with surface topography, contact pressure and plastic strain [4,5].…”

Section: Introductionmentioning

confidence: 99%

Tool life prediction under multi-cycle loading conditions: A feasibility study

Yuan

Zhou

Politis

et al. 2015

MATEC Web of Conferences

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Abstract. In the present research, the friction and wear behaviour of a hard coating were studied by using ball-on-disc tests to simulate the wear process of the coated tools for sheet metal forming process. The evolution of the friction coefficient followed a typical dualplateau pattern, i.e. at the initial stage of sliding, the friction coefficient was relatively low, followed by a sharp increase due to the breakdown of the coatings after a certain number of cyclic dynamic loadings. This phenomenon was caused by the interactive response between the friction and wear from a coating tribo-system, which has not been addressed so far by metal forming researchers, and constant friction coefficient values are normally used in the FE simulations to represent the complex tribological nature at the contact interfaces. Meanwhile, most of the current FE simulations are single cycle, whereas most sheet metal forming operations are conducted as multi-cycle. Therefore, a novel friction/wear interactive friction model was developed to, simultaneously, characterise the evolutions of friction coefficient and the remaining thickness of the coating layer, to enable the wear life of coated tooling to be predicted. The friction model was then implemented into the FE simulation of a sheet metal forming process for feasibility study.

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Effects of sliding velocity and ambient temperature on the friction and wear of a boundary-lubricated, multi-layered DLC coating

Cited by 38 publications

References 40 publications

Influence of intrinsic and extrinsic conditions on the tribological characteristics of diamond-like carbon coatings: A review

Influence of intrinsic and extrinsic conditions on the tribological characteristics of diamond-like carbon coatings: A review

Effects of sliding speed and testing temperature on the tribological behavior of a nickel-alloy based solid-lubricating composite

Tool life prediction under multi-cycle loading conditions: A feasibility study

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