Thermal Stability of Nanostructured Cr₃C₂-NiCr Coatings

Study of the microstructure of plasma sprayed coatings obtained from Al2O3–13TiO2 nanostructured and conventional powders

“…The possibility of producing coatings with superior properties (e.g., wear resistance) compared to the conventional thermal sprayed coatings currently available, opens a wide range of research opportunities for various materials. Some researchers successfully obtained the nanostructured coatings by thermal spraying with reconstituted nanostructured powders, for example ZrO 2 -Y 2 O 3 , Cr 3 C 2 -NiCr, WC-Co, and Al 2 O 3 -TiO 2 [1][2][3][4]. Although the production of nanostructured coatings is concentrated on compositions similar to currently available conventional coatings and using existing deposition equipment to fabricate them, the microstructure of the coatings changes.…”

Sliding Wear Behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 Composite Coatings at Elevated Temperature up to 800 °C

“…For example, Cr 3 C 2 -NiCr cermet coatings have been widely used for high-temperature wear resistance and corrosion resistance in powder generation industry, aerospace industry, oil-refining industry, heattreatment rolls, and coal burning boiler tubes [14,15]. One of the most convenient and versatile techniques for depositing Cr 3 C 2 -NiCr coatings is high velocity oxy-fuel (HVOF) spraying [12][13][14][15][16]. This is because, compared with conventional air plasma spraying, HVOF spraying operates at a relatively low temperature at which the decomposition of carbide is inhibited and the flight particles have a high impact velocity.…”