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Residual, corrosion & tribological behavior of HVOF sprayed sustainable temperature-dependent carbon-based hybrid composite coatingTyagi, Ankit ; Murtaza, Qasim ; Walia, Ravinderjit SinghAt present, cost-effective coatings that cause less pollution are in great demand; to decrease frictional losses, carbon-based hybrid composite coatings have been developed using a high-velocity ... oxy-fuel (HVOF) spray process. The microstructural, tribological, corrosion, and mechanical properties of these coatings have been evaluated using high-resolution X-ray diffraction (HRXRD), field emission scanning electron microscopy-Energy dispersive X-ray Spectroscopy (FESEM-EDS), Raman spectrum, Vickers micro-hardness tester, (mikro)-360 cos(alfa) residual stress analyser, corrosion tester, and high temperature tribometer. The residual stress, corrosion and tribological behaviour at high temperatures were investigated using a pin-on-disc high-temperature tribometer. The tribological performance was evaluated using a high-temperature tribometer, and the experimental result shows that a coefficient of friction (COF) varies from 0.12 to 0.52, while wear results were in the range of 45 (mikro)m to 120 (mikro)m, as the test condition of temperature ranging from 50 °C to 350 °C, load from 60 N to 90 N and sliding velocity from 0.1 m/s to 0.4 m/s respectively. The experimental results of corrosion testing show that the mass loss decreases from 0.10 g to 0.04 g, when samples were dipped for 1 h; when the samples were dipped for 8 h, the mass loss of hybrid composite coating varied from 0.12 g to 0.045 g. The tribological test showed a 78.9 % increase in micro-hardness, a 78 % decrease in residual stress, and 60 % and 62.5 % decreases in mass loss due to corrosion at 1 h and 8 h, respectively, a 76.9 % decrease in COF and 62.5 % reduction in the wear at test condition of 350 °C temperature, a sliding velocity of 0.4 m/s and 90 N load.Source: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 67, no. 4, Apr. 2021, str.191-199)Type of material - article, component partPublish date - 2021Language - englishCOBISS.SI-ID - 69915907
Author
Tyagi, Ankit |
Murtaza, Qasim |
Walia, Ravinderjit Singh
Topics
HVOF carbon coating |
FESEM |
HRXRD |
raman spectra test |
corrosion |
wear test |
visokohitrostno plamensko nabrizgavanje |
ogljikove prevleke |
vrstična elektronska mikroskopija s poljsko emisijo |
visokoločljivostna rentgenska difrakcija |
ramanska spektroskopija |
korozija |
test obrabe
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Tyagi, Ankit | |
Murtaza, Qasim | |
Walia, Ravinderjit Singh |
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