Tribological Behavior of a Cr2O3 Ceramic Coating/Steel Couple Under Dry Sliding and Heavy Loading Conditions

Soffritti, Chiara; Merlin, Mattia; Vazquez, R.; Garagnani, Gian Luca

doi:10.1007/s11665-018-3426-3

Cited by 10 publications

(4 citation statements)

References 27 publications

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“…The soft C45 pin material could be abraded by hard asperities of WC–Co coating into fine debris particles, and then partly adhered on the coating as the smooth patches of material under compressive sliding action. The heat induced under compressive sliding process could cause deformation and the adhered C45 particles or layers would be gradually removed via abrasion and partially pull parts of strongly adhered coating materials, causing small cracks and resulting in removal of WC–Co material (Soffritti et al , 2018). For the WC–Co (2) coating with a longer spraying time of 15 s, the worn surface as shown in Figure 5(c) comprised relatively smooth islands, patches and grains of materials lightly covering with tiny particles.…”

Section: Resultsmentioning

confidence: 99%

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Khuengpukheiw

Wisitsoraat

Saikaew

2023

WJE

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Purpose This paper aims to compare the wear behavior, surface roughness, friction coefficient and volume loss of high-velocity oxy-fuel (HVOF) sprayed WC–Co and WC–Cr3C2–Ni coatings on AISI 1095 steel with spraying times of 10 and 15 s. Design/methodology/approach In this study, the pin-on-disc testing technique was used to evaluate the wear characteristics at a speed of 0.24 m/s, load of 40 N and test time of 60 min under dry conditions at room temperature. The wear characteristics were examined and analyzed by scanning electron microscopy and energy dispersive X-ray spectroscopy. The surface roughness of a coated surface was measured, and microhardness measurements were performed on the cross-sectioned and polished surfaces of the coating. Findings Spraying time and powder material affected the hardness of HVOF coatings due to differences in the porosity of the coated layers. The average hardness of the WC–Cr3C2–Ni coating with a spaying time of 15 s was approximately 14% higher than that of the WC–Cr3C2–Ni coating with a spraying time of 10 s. Under an applied load of 40 N, the WC–Co coating with a spraying time of 15 s had the lowest variation in the friction coefficient compared with the other coatings. The WC–Co coating with a spraying time of 10 s had the lowest average and variation in volume loss compared to the other coatings. The WC–Cr3C2–Ni coating with a spraying time of 10 s exhibited the highest average volume loss. The wear features changed slightly with the spraying time owing to variations in the hardness and friction coefficient. Originality/value This study investigated tribological performance of WC–Co; WC-Cr3C2-Ni coatings with spraying times of 10 and 15 s using pin-on-disc tribometer by rotating the relatively soft pin (C45 steel) against hard coated substrate (disc).

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Section: Resultsmentioning

confidence: 99%

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Khuengpukheiw

Wisitsoraat

Saikaew

2023

WJE

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“…Because the hard abrasive particles compact between the sliding surfaces as the sliding distance rises from 1000 to 1500 m, a drop-in wear rate is seen for both coated and annealed samples. The initial abrasive particles that come into touch with the sliding counter face are blunted and smoothed, which increases the contact area between the sliding surfaces [46,47]. In comparison to the substrate, Al 2 O 3 -coated samples showed a SWR decrease of 15.12% and annealed samples of 22.08% at lower sliding distances (500 m).…”

Section: Effect Of Distance On Wearmentioning

confidence: 99%

Wear and corrosion resistance of Al₂O₃ and TiC deposition on steel substrate using self- propagating high temperature synthesis method

Akhil,

Radhika,

Jeyaprakash

et al. 2024

Phys. Scr.

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In the present work, a low-carbon steel substrate was coated with Al2O3 and TiC using self-propagating high temperature synthesis. The synthesized coatings were annealed at 450oC for 2-6 hrs. The characteristics of the substrate, coated, and annealed samples were examined, including microhardness, wear resistance, and corrosion resistance. A pin-on-disc tribometer was employed to conduct the wear test by varying the load, sliding velocity, and distance. The impact of these factors on the wear rate and worn surface morphology was then examined. Further, corrosion resistance was evaluated using electrochemical corrosion testing with 3.5 wt.% NaCl as electrolyte. Results showed that Al2O3 and TiC specimens annealed at 450oC for 5 hrs and 4 hrs improved the microhardness by 1.3 and 1.06 times than that of as-coated specimens respectively. The synthesized Al2O3 and TiC coatings showed an abrasive wear mechanism at higher loads and tribolayer formation was observed at higher sliding velocity and distances. The corrosion and wear resistances of the samples were found as follows: substrate< Al2O3 coated < TiC coated < Al2O3 annealed < TiC annealed. The Al2O3 and TiC ceramic coatings were found to improve wear and corrosion resistance having potential applications in cement, petrochemical, and marine industries.

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“…The increasing need for enhanced reliability and efficiency in components, coupled with the imperative to reduce frictional losses and achieve higher power density, has raised the tribological requirements on contact surfaces. Surface engineering techniques, as well as coatings and lubricant approaches, have been widely studied and adopted to decrease friction and wear [2][3][4]. Surface texturing is a surface engineering technique to reduce friction, as highlighted by several studies [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Machining Process on the Wear Properties of Self-Mated Structural Steel in Dry Sliding Conditions

Garagnani,

Baroni,

Fortini

et al. 2024

Metals

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This work investigates the tribological behavior of a machined S355JR structural steel in dry sliding conditions for the development of an innovative seismic dissipation system. Flat-ended pins and disks were made of the same structural steel to simulate the conformal contact of different device parts. Pins were machined by turning, while disks were milled and turned to obtain a nominal average surface Ra roughness ranging from 0.8 µm to 6.3 µm. The influence of the surface roughness on the coefficient of friction (COF), specific wear rate (SWR), and time to steady-state (TSS) was investigated. Tribological tests were conducted reciprocating motion in dry sliding conditions to simulate the operating conditions of the device, with 1 Hz and 2 Hz reciprocating frequencies and an applied normal load of 50 N. The Rsk and Rku roughness parameters helped to better understand the tribological response of milled and turned disks, having an influence on the TSS and SWR.

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Tribological Behavior of a Cr2O3 Ceramic Coating/Steel Couple Under Dry Sliding and Heavy Loading Conditions

Cited by 10 publications

References 27 publications

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Wear and corrosion resistance of Al₂O₃ and TiC deposition on steel substrate using self- propagating high temperature synthesis method

Influence of the Machining Process on the Wear Properties of Self-Mated Structural Steel in Dry Sliding Conditions

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Tribological Behavior of a Cr2O3 Ceramic Coating/Steel Couple Under Dry Sliding and Heavy Loading Conditions

Cited by 10 publications

References 27 publications

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr3C2Ni coatings on AISI 1095 steel

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr3C2Ni coatings on AISI 1095 steel

Wear and corrosion resistance of Al2O3 and TiC deposition on steel substrate using self- propagating high temperature synthesis method

Influence of the Machining Process on the Wear Properties of Self-Mated Structural Steel in Dry Sliding Conditions

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Product

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Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Effect of spraying time on mechanical and tribological performances of HVOF-sprayed WC–Co and WC–Cr₃C₂Ni coatings on AISI 1095 steel

Wear and corrosion resistance of Al₂O₃ and TiC deposition on steel substrate using self- propagating high temperature synthesis method