Wear behavior of chromium nitride coating in dry condition at lower sliding velocity and load

Singh, Shailesh Kumar; Chattopadhyaya, Somnath; Pramanik, Alokesh; Kumar, Sanjeev

doi:10.1007/s00170-017-0796-x

Cited by 34 publications

(13 citation statements)

References 23 publications

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“…Cathode power was set at 2,500-2,700 W and pulse frequency was adjusted to form nitride phase of chromium. Detail x-ray diffractometry (XRD) analysis of the coatings were carried out as reported in our previous corresponds (Singh et al, 2017) and confirmed that the coatings structure is mainly face centred cubic (FCC) CrN with a trace of hexagonal CrN along (200) and (111) preferential orientation. Morphology of the coating as well as elemental analysis is shown in Figure 1 .…”

Section: Coating Characterisationsupporting

confidence: 72%

Effect of lubrication on the wear behaviour of CrN coating deposited by PVD process

et al. 2019

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This paper investigates the effect of SAE grade 20W50 engine oil as a lubricant on the wear behaviour of chromium nitride (CrN) coating deposited by PVD process at higher loads and speeds by pin on disc tribometer. The specific wear rate ranges from 9.82 × 10-5 to 2.87 × 10-5 mm 3 /Nm in dry condition whereas in lubricated condition 0.97 × 10-5 to 0.19 × 10-5 mm 3 /Nm. Successive increase of speed and load rises the temperature of wear track from 65°C to 178°C in dry condition while 34°C to 40°C in lubricated conditions results to decrease in friction coefficient, which has immense influence on the wear resistance of coating. The wear mechanism of the coatings was analysed by SEM and EDS and found deformation, cracks and, nitride particle pull-out, built up edge formation, erosion and adhesive wear coupled with oxidation wear. The highlights of the paper are: 1) tribology of CrN coating against cylinder liner material as counter face summarised; 2) research has practical Effect of lubrication on the wear behaviour of CrN coating 61 applications for piston ring with the influence of engine oil; 3) temperature ranges from 65°C to 178°C in dry and 34°C to 39°C in lubrication during wear test; 4) the wear mechanism is combination of three body abrasion, metal transfer and oxidation.

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Section: Coating Characterisationsupporting

confidence: 72%

Effect of lubrication on the wear behaviour of CrN coating deposited by PVD process

et al. 2019

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“…The FISCHERSCOPE HM2000 is an automated nano-indentation measuring system has been used to perform indentation test method according to ASTM standard E2546.The hardness of the upper layer of the CrN coating was 681.58 HV, examined at 300 mN/20 s.The detailed structure and phase analysis has been examined with the help of X-ray diffractometry (XRD) of the CrN coatings, which was carried out as reported in our previous corresponds at [ 11 ] and confirmed that the structure of the coating is mainly face-centered cubic (FCC) CrN with a trace of hexagonal CrN along (200) and (111) preferential orientation. The average-based parameters were obtained to examine the surface roughness of the coating in Figure 4 .…”

Section: Resultsmentioning

confidence: 99%

Tribological Properties of Chromium Nitride on the Cylinder Liner under the Influence of High Temperature

et al. 2020

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The chromium nitride coating is a hard coating used to improve the sliding friction and wear behavior and is applied to engine components in various operating conditions even at an elevated temperature. In this study, chromium nitride was deposited by a physical vapor deposition process onto the cast iron substrate. All tribological tests were performed on linear reciprocating tribometer with a stroke length of 5 mm in a dry condition at variable temperature levels of 28 °C, 100 °C, 200 °C, and of 300 °C corresponding to loads of 10 N, 20 N, 30 N, and 40 N against the cylinder liner material. The worn surfaces of chromium nitride(CrN) coatings after friction tests were analyzed by scanning electron microscope (SEM) and energy-dispersive spectroscopy (EDS). The results showed that friction coefficients (COF) ranged from 0.93 to 0.34 from room temperature to 300 °C against the cylinder liner material as a counter-body of 6 mm in diameter; higher temperature results in the positive tribological performance of CrN, with at least 0.34 COF at 300 °C. The wear mechanisms of CrN and counter-body surfaces are abrasive wear accompanied by the slight oxidation. This study guides the wear behavior of cylinder liner coatings in an environment similar to the engine.

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“…It is actually cast iron whose structure lies in the metal matrix and consists of graphite lamellae. The improvement of wear-resistant properties of a cast iron piston ring-cylinder liner pair of an internal combustion engine can exert a significant influence on maintaining service properties, extending service life, and reducing the repair costs [22,23,24].…”

Section: Methodology Applied In Analysing the Chemical Composition Ofmentioning

confidence: 99%

Piston Ring Material in a Two-Stroke Engine Which Sustains Wear Due to Catalyst Fines

Vukičević

Račić

Ivošević

2019

brod

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This research paper discusses preventive protection of the marine engine against abrasive effects of the catalyst fines in fuel. The relevant facts were gathered while analysing the performance of the slow-speed Wärtsilä RTA engine on an Aframax tanker. The analysis comprised fuel properties, regular and extraordinary examinations of the engine, including the control and replacement of piston rings and the measurement of the liner wear rate. The research particularly focused on the top compression ring as it withstands highest loads and fastest wear. On the other side, the research involved a chemical analysis of the piston rings with the purpose of establishing their chemical properties, structure, coating thickness and micro-hardness. In addition to a number of preventive measures that can be taken on board before injecting the fuel into the combustion chamber, the selection of a piston ring's material quality affects its wear rate to a large extent. The wear rate also depends on the catalyst fines in fuel. In practice, the piston ring of GGV type proved to be resistant to abrasive wear and its chemical properties were established through laboratory material testing.

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Wear behavior of chromium nitride coating in dry condition at lower sliding velocity and load

Cited by 34 publications

References 23 publications

Effect of lubrication on the wear behaviour of CrN coating deposited by PVD process

Effect of lubrication on the wear behaviour of CrN coating deposited by PVD process

Tribological Properties of Chromium Nitride on the Cylinder Liner under the Influence of High Temperature

Piston Ring Material in a Two-Stroke Engine Which Sustains Wear Due to Catalyst Fines

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