To qualify high-entropy alloys (HEAs) as resource-saving and high-temperature wear-resistant coating materials, high-velocity oxygen fuel (HVOF) coatings produced from the inert gas-atomized powder of Al0.3CrFeCoNi, Al0.3CrFeCoNiNb0.5 Al0.3CrFeCoNiMo0.75 were investigated in reciprocating wear tests at temperatures 25, 500, 700 900 °C. In addition to tests, microstructure chemical composition t...

Abstract In this investigation, atmospheric plasma spray (APS) and high-velocity oxy-fuel (HVOF) techniques were used to produce AlCoCrFeNi coatings. High-entropy alloys (HEAs), due their mechanical, chemical, physical properties are capturing the attention of international scientific community. Starting feedstock powders characterized in terms size, phase, corrosion test NaCl, ball on disk, ru...

Combinations of NiCoCrAlY APS and high-velocity oxygen fuel (HVOF) bond coatings were deposited on alloy 247 disk substrates with yttria-stabilized zirconia (YSZ) top to assess the benefit air plasma sprayed (APS) ‘flash’ coatings. Using 1-h cycles at 1100 ℃ in 10% H2O HVOF-only APS-only as a baseline, it was found that flash extended average coating lifetime by 16% 35% thicker performing best....

WC-12Co HVOF-sprayed coatings (~400 µm in thickness) reinforced with multiwalled carbon nanotubes (MWCNTs), were deposited on a steel substrate. The aim of this work is to provide and analyze data from HVOF sprayed coatings, concerning the influence addition MWCNTs their tribocorrosion performance, 3.5% NaCl electrolyte. Electrochemical (current density corrosion potential potentiodynamic polar...