The tribological performance of TiN, WC/C and DLC coatings measured by the four-ball test

Xiao, Yonghong; Shi, Wankai; Luo, Jing; Liao, Yijian

doi:10.1016/j.ceramint.2013.12.015

Cited by 38 publications

(18 citation statements)

References 14 publications

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“…The minor chemical components (wt%) of the steel ball were S-0.03, P-0.035, Mn-0.72, Si-0.8, C-0.96, and Cr-17.8. The base canola oil had kinematic viscosity of 35.606 mm 2 /s and density of 0.9031 gm/cm 3 20) . In this study, a Cr based interlayer was provided on the substrate surface prior to deposition of the DLC coating to increase the coating-substrate adhesion.…”

Section: Preparation Of Ta-c Dlc Coatingmentioning

confidence: 99%

Tribological Properties of Steel/Steel, Steel/DLC and DLC/DLC Contacts in the Presence of Biodegradable Oil

Mannan

Sabri

Kalam

et al. 2019

J. Jpn. Petrol. Inst.

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Tribological properties of tetrahedral diamond-like carbon (ta-C DLC) coating were investigated to assess the effects of the counter surfaces under the boundary condition in the presence of biodegradable oil. The tribological tests were performed using steel/steel, steel/DLC and DLC/DLC contacts, and found that the coefficient of friction was 0.062, 0.059 and 0.048, and the wear loss was 5.57 10-4 , 9.81 10-4 and 6.02 10-4 mm 3 , respectively. DLC/DLC contacts showed the lowest friction coefficient and steel/steel contacts showed the lowest wear. The high wear of steel/DLC compared to the other two contacts might be due to the high affinity between iron and carbon. The high content of oleic acid may maintain the low friction in self-mated ta-C DLC contacts and tribochemical wear was prevented by nano-scale graphitization. Therefore, material combinations are important for tribological properties and canola oil is an effective lubricant for contacts coated with ta-C DLC films.

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Section: Preparation Of Ta-c Dlc Coatingmentioning

confidence: 99%

Tribological Properties of Steel/Steel, Steel/DLC and DLC/DLC Contacts in the Presence of Biodegradable Oil

Mannan

Sabri

Kalam

et al. 2019

J. Jpn. Petrol. Inst.

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“…(Malaysia)'. It is important to mention that the lack of sufficient adhesion between substrate and coating is the main cause of premature failure of PVD coatings (Xiao et al, 2014). In this study, a chromium based interlayer was provided on the substrate surface prior to the deposition of ta-C DLC films in order to increase the coating-substrate adhesion.…”

Section: Materials and Deposition Of Coatingsmentioning

confidence: 99%

Tribological performance of DLC/DLC and steel/DLC contacts in the presence of additivated oil

et al. 2018

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In this study, the tribological properties of ta-C DLC were largely influenced by the counter surfaces and additives. The DLC/DLC contact showed approximately 60% lower wear when tested with additivated oil compared to that of base oil and this result was 66% in steel/DLC contact. Friction coefficient in DLC/DLC contact was lower than in steel/DLC contact under both oils. But however, both contacts showed slightly higher friction coefficient under additivated oil compared to that of base oil. In steel/DLC, the thermo-chemical reaction between carbon and iron and/or the fusion of the transferred particles were prevented by additives which were present under base oil. The fracture found on DLC surface in steel/DLC contact under additivated oil indicates that the tribolayer formed on the steel surface would be of brittle nature. The passivation of surfaces in DLC/DLC contact by additives prevented the damage which was observed under base oil.

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“…6,7 In general, researchers had tried two approaches to improve the frictional characteristics of the mechanical seals. First approach tried improve the bulk properties of the seal face materials and second approach focused on the surface engineering techniques such as surface laser texturing, 8–11 physical vapor deposition, and chemical vapor deposition techniques involving the deposition of nanocrystalline diamond films (NCD), 5,12 ultra-nanocrystalline diamond films (UNCD), and diamond-like carbon (DLC) films on the mating seal face. 13–15 This technique had shown a significant improvement in the characteristics of the mechanical seals.…”

Section: Introductionmentioning

confidence: 99%

Frictional study of alumina, 316 stainless steel, phosphor bronze versus carbon as mechanical seals under dry sliding conformal contact

Shankar¹,

Praveenkumar²,

Kumar³

2015

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper presents an investigative study on the frictional characteristics of alumina, 316 stainless steel, and phosphor bronze materials against resin-impregnated carbon in the form of mechanical seals. An experimental setup was designed and fabricated to study the frictional characteristics of the seal for varying normal load and speed. Pairing of stationary seal and rotary seal was done among the three combinations among which alumina versus resin-impregnated carbon exhibited the superior frictional characteristics. Whereas in comparison with 316 stainless steel versus resin-impregnated carbon and phosphor bronze versus resin-impregnated carbon, the latter exhibited the better frictional characteristics. Phosphor bronze pair and 316 stainless steel pair resulted in low and stable friction coefficient in the range of 0.07-0.08 and 0.12-0.13, respectively. This work highlights that the phosphor bronze might be an alternate substitute for the applications involving 316 stainless steel as a seal face material, where the frictional characteristics was a major concern.

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The tribological performance of TiN, WC/C and DLC coatings measured by the four-ball test

Cited by 38 publications

References 14 publications

Tribological Properties of Steel/Steel, Steel/DLC and DLC/DLC Contacts in the Presence of Biodegradable Oil

Tribological Properties of Steel/Steel, Steel/DLC and DLC/DLC Contacts in the Presence of Biodegradable Oil

Tribological performance of DLC/DLC and steel/DLC contacts in the presence of additivated oil

Frictional study of alumina, 316 stainless steel, phosphor bronze versus carbon as mechanical seals under dry sliding conformal contact

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