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...

WC-Co cermet materials serving as protective coatings are widely used in many fields. Conventional WC-17Co were formed high-velocity oxygen-fuel (HVOF), warm spraying (WS), and cold (CS), respectively. Deposition behavior of a single particle, well the microstructure, microhardness, fracture toughness, abrasive wear various ways investigated. The results show that deposition particle was differ...

Corrosion behavior of Ni20Cr coatings deposited by HVOF (high velocity oxygen-fuel) process was evaluated in ZnCl2-KCl (1 : 1 mole ratio) molten salts. Electrochemical techniques employed were potentiodynamic polarization curves, open circuit potential, and linear polarization resistance (LPR) measurements. Experimental conditions included static air and temperatures of 350, 400, and 450°C. 304...