Tribological properties and wear mechanism of sputtered C/Cr coating

Yang, Shicai; Li, X; Renevier, Nathalie; Teer, D.G.

doi:10.1016/s0257-8972(01)01147-1

Cited by 85 publications

(44 citation statements)

References 10 publications

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“…The reduction in specific wear rate seems to be abetted by the formation of a transfer layer on the counter-layer, because of structural transformations triggered by the normal load applied during the sliding. Among these structural effects, the re-crystallisation process becomes very active at the contact interface in such a way that, due to the reciprocating sliding, a re-orientation of the re-crystallised layers brings the basal planes parallel to the top surface of the coating with the consequent reduction in the wearing rate [41]. Specifically, the sliding-induced localised annealing at the contact asperities, likely causes a gradual destabilization of the carbon-hydrogen bond in the sp 3 tetrahedral structure and as a result, a transformation of this sp 3 structure into a graphite-like sp 2 structure takes place [11].…”

Section: Tribological Behaviourmentioning

confidence: 99%

Tribological performance of an H-DLC coating prepared by PECVD

Solís

Zhao

Wang

et al. 2016

Applied Surface Science

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and 5.5 x 10 -8 mm -3 /N m, respectively. Through Raman spectroscopy and electron microscopy it was confirmed the carbon-carbon contact, due to the tribolayer formation on the wear scars of the coating and pin. In order to further corroborate the experimental observations regarding the graphitisation behaviour, the existing mathematical relationships to determine the graphitisation temperature of the coating/steel contact as well as the flash temperature were used.

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Section: Tribological Behaviourmentioning

confidence: 99%

Tribological performance of an H-DLC coating prepared by PECVD

Solís

Zhao

Wang

et al. 2016

Applied Surface Science

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“…It was also reported [21] that sliding on carbon surface with high stress resulted in reorientation of those carbon nano-crystallites at the top part with their (0002) planes parallel to the sliding direction. These reoriented planes provided lower shear force to its opposing surface that contributed to lower coefficient of friction.…”

mentioning

confidence: 86%

Improvement of Sliding Performance for Ball on Disc Tribo-Partners Using Graphite Like Carbon Solid Lubricant Coating

Wen¹,

Yao²,

Yang³

2018

MSA

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Sliding wear tests of chilled cast iron tappet-disc and cam-ball tribo-partners were conducted by using ball on disc testing device. Magnetron sputtering CrTiAlN hard coating and Graphite like carbon (GLC) solid lubricant coatings were applied on either one or both of the contact surfaces on tribo-partners. Ball crater device and scanning electron microscope were used to investigate surface wear of rubbed track on disc and wear scar on ball. The sliding performances of tribo-partners were evaluated in terms of coefficient of friction at sliding surfaces and specific wear rate (SWR) on both of the rubbed surfaces under specific test conditions. All test results showed that GLC solid lubricant coating on both surfaces of tappet-disc and cam-ball was the best option to allow this tribo-partners having high performance in terms of sliding under high load with low coefficient of friction and low SWR. The advantage of using GLC solid lubricant coating is to enable mechanical parts made of ordinary and sustainable materials (e.g. cast iron or plain steels) to be operated under even harsher conditions of higher load and higher wear environment with improved performance.

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“…The wear resistance of the processed samples was evaluated using a self-developed pin-on-disc tribo-meter [34,38,40] .In the tests, two counterpart materials were used, including 5.0 mm diameter balls made from hardened Cr-alloyed ball bearing steel and WC-8%Co cemented carbide. The wear tests were conducted under an applied normal load of 5 N and linear sliding speed of 0.2 ms -1 , with each test being run for 60 minutes.…”

Section: Hardness and Tribological Testingmentioning

confidence: 99%

Effect of Nitriding Time on the Structural Evolution and Properties of Austenitic Stainless Steel Nitrided Using High Power Pulsed DC Glow Discharge Ar/N2 Plasma

Yang

Kitchen

Luo

et al. 2016

J. Coat. Sci. Technol.

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A high power pulsed DC glow discharge plasma (HPPGDP) system was employed to perform fast nitriding of AISI 316 austenitic stainless steel in Ar and N2 atmosphere. In-situ optical emission spectroscopy and Infrared pyrometer measurements were used during the plasma nitriding to investigate the effect of dynamic plasma on the nitriding behaviour. SEM and EDX, XRD, Knoop indentation, and tribo-tests were used to characterize microstructures and properties of the nitrided austenitic stainless steel samples.HPPGDP produced high ionization of both Ar and N2in the plasma that corresponded to dense ion bombardment on the biases steel samples to induce effective plasma surface heating and to form high nitrogen concentration on the biased steel surfaces, and therefore fast nitriding (> 10µm/hour) was achieved. Various phases were identified on the nitrided stainless steel samples formed from a predominantly a single phase of nitrogen supersaturated austenite toa multi-phase structure comprising chromium nitride, iron nitride and ferrite dependent on the nitriding time. All the nitrided AISI 316 austenitic stainless steel samples were evaluated with high hardness (up to 17.3 GPa) and exceptional wear resistance sliding to against hardened steel balls and tungsten carbide balls.

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Tribological properties and wear mechanism of sputtered C/Cr coating

Cited by 85 publications

References 10 publications

Tribological performance of an H-DLC coating prepared by PECVD

Tribological performance of an H-DLC coating prepared by PECVD

Improvement of Sliding Performance for Ball on Disc Tribo-Partners Using Graphite Like Carbon Solid Lubricant Coating

Effect of Nitriding Time on the Structural Evolution and Properties of Austenitic Stainless Steel Nitrided Using High Power Pulsed DC Glow Discharge Ar/N2 Plasma

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