Tribological performance of an H-DLC coating prepared by PECVD

Solís, J.; Zhao, Hongyuan; Wang, Chun; Verduzco, J.A.; Bueno, Alysson Helton Santos; Neville, Anne

doi:10.1016/j.apsusc.2016.04.184

Cited by 72 publications

(31 citation statements)

References 47 publications

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“…Nevertheless, the sp 2 bonds determine the superior anti-wear properties of DLC films mainly in the run-in phase or when the total sliding distance is short. According to Solis et al [9], under dry sliding in ambient conditions, elevation of the temperature and high stresses in the pin-disc contact site induce hydrogen depletion from the diamond-like matrix. As a result, under high contact stresses the hydrogen-less surface transforms into a graphitic structure rich in sp 2 bonds.…”

Section: Discussionmentioning

confidence: 98%

“…Because of that, when comparing practical values of adhesion, all the parameters that can significantly influence the results obtained should be mentioned. In the work by Khilifi et al [22], TiN coating was deposited on AISI 52100 bearing steel, which under a load of 50 mN exhibits a hardness of 11 GPa and elastic modulus of 180 GPa [9]. Other important factors, e.g.…”

Section: Discussionmentioning

confidence: 99%

“…In order to evaluate the tribological properties of coated biomaterials, pin-on-disc tribometers, hip or knee simulators, as well as scratch or wear-corrosion tests are proposed [3,8]. Recently, substantial attention has been paid to the relationship between the mechanical properties of the substrate and the coating and the anti-wear, as well as the anti-scratch performance of thin films [3,9,10]. Superb tribological performance is crucial especially in the orthopedic applications, where patient safety constitutes a fundamental priority.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of mechanical properties of substrate and coating on wear performance of TiN- or DLC-coated 316LVM stainless steel

Łępicka

Grądzka-Dahlke

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et al. 2017

Wear

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of mechanical properties of substrate and coating on wear performance of TiN- or DLC-coated 316LVM stainless steel

Łępicka

Grądzka-Dahlke

Pieniak

et al. 2017

Wear

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“…However, the tribological properties of DLC films depend on not only the intrinsic parameters, but also many extrinsic factors, such as sliding velocity, normal load, environment atmosphere, and properties of friction interfaces [12][13][14][15]. In particular, the effect of sliding velocity on the friction characteristics of DLC films has been extensively studied, giving rise to a large amount of diverging findings [15][16][17]. For instance, it is noted that the friction coefficient of the DLC films increased from 0.07 to 0.22 with increasing of sliding velocity in air, and the reason is due to the entrapment of more debris particles at the sliding interface [18].…”

Section: Introductionmentioning

confidence: 99%

Perspectives of the Friction Mechanism of Hydrogenated Diamond-Like Carbon Film in Air by Varying Sliding Velocity

et al. 2018

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The purpose of the present work is to probe the friction mechanism of hydrogenated diamond-like carbon (H-DLC) film in air by varying sliding velocity (25-1000 mm/s). Friction tests of Al 2 O 3 ball against H-DLC film were conducted with a rotational ball-on-disk tribometer. As the sliding velocity increases, both the friction coefficient and the surface wear of H-DLC film decrease, reach the minimum values, and then increase in the high sliding velocity region. Based on the observed results, three main friction mechanisms of H-DLC film-namely graphitization mechanism, transfer layer mechanism, and passivation mechanism-are discussed. Raman analysis indicates that the graphitization of worn surface on the H-DLC film has a negligible contribution to the variation of the friction coefficient and the surface wear. The origin of the sliding velocity dependence is due to the synergistic interaction between the graphitized transfer layer formation and the surface passivation. The present study will not only enrich the understanding of friction mechanism of H-DLC films in air, but will also help to promote their practical engineering applications.

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“…Based on the increasing scuffing resistance experiments, diamond-like carbon (DLC) coated piston ring can protect the cast iron liner from scuffing up to 600 N normal load [19]. Its lower friction coefficient and wear loss were attributed to the formation of a mixed tribolayer [19][20][21]. But the existence of residual stress in the preparation process of DLC coating would cause the coating to crack.…”

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confidence: 99%

Wear Behavior of CuSn Coated Piston Ring Sliding against Nodular Cast Iron Cylinder Liner under Heavy-Duty Conditions

et al. 2019

Metals

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In order to investigate the friction and wear behavior between the nodular cast iron cylinder liner (Fe) and CuSn coated piston ring under heavy-duty conditions, piston rings with chromium(Cr) coating and CuSn-Cr coating were tested using the piston ring reciprocating liner test rig at the simulated working conditions of 56 MPa, 200 r/min, 190 • C. Compared with the Cr/Fe pair, the CuSn coating consumption of the CuSn-Cr/Fe pair made friction coefficient and cylinder wear loss decrease by 2.8% and 51.5%, respectively. Different size Sn patches worn from the CuSn coated piston ring were embedded into the cylinder liner surface based on the surface topography. This process was shown to reduce the surface roughness of a cylinder liner and form flatter plateau structures. Chemical elements analysis indicated that plateau structures on the cylinder liner surface matched with CuSn-Cr coated ring are helpful to promote the tribo-chemical reaction and generate the reactive products to protect the mutually contacted asperities.Although surface texturing on the cylinder liner or piston ring is an effective method to improve the wear behavior [7-9], various coatings prepared on the piston rings are also important means to improve heavy-duty friction and wear performance [10]. The CrN coating made by the physical vapor deposition or magnetron sputtering method has shown good high temperature resistance to adhesion [11][12][13][14]. In order to improve the thermal stability, oil compatibility, and internal stress of ceramic coatings, nanocomposite coatings (like TiN, TiAlN, TiSiN and TiSiCN) were developed to minimize the frictional losses and wear of piston rings in an automotive engine [15,16]. Shen et al. compared chromium-based ceramic composite (CKS) and nickel-chromium-molybdenum (NCM) coated rings sliding against cast iron liner and demonstrated that the anti-scuffing behavior of NCM is better than that of the CKS with the failure time as a criterion [17]. Wan et al. indicated that the presence of amorphous graphite-like carbon not only combated the scuffing damage and running instability effectively for conventional chromium-based coatings, but also improved the reliability and robustness of the piston rings [18]. Based on the increasing scuffing resistance experiments, diamond-like carbon (DLC) coated piston ring can protect the cast iron liner from scuffing up to 600 N normal load [19]. Its lower friction coefficient and wear loss were attributed to the formation of a mixed tribolayer [19][20][21]. But the existence of residual stress in the preparation process of DLC coating would cause the coating to crack. If stress concentration exerted on the contact interface was too high, it would lead to the coating wear or peeling [22].Compared with hard coatings, soft coatings have also attracted widespread attention for weakening the friction surface damage. Hamilton et al. investigated the relationship between macroscopic wear and the temperature of the MoS 2 coating [23]. Meng et al. indicated that the stabilized fricti...

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Tribological performance of an H-DLC coating prepared by PECVD

Cited by 72 publications

References 47 publications

Effect of mechanical properties of substrate and coating on wear performance of TiN- or DLC-coated 316LVM stainless steel

Effect of mechanical properties of substrate and coating on wear performance of TiN- or DLC-coated 316LVM stainless steel

Perspectives of the Friction Mechanism of Hydrogenated Diamond-Like Carbon Film in Air by Varying Sliding Velocity

Wear Behavior of CuSn Coated Piston Ring Sliding against Nodular Cast Iron Cylinder Liner under Heavy-Duty Conditions

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