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This study was financed by the Bialystok University of Technology under the project
WZ/WIZ-INZ/4/2022 (Olga Orynycz); research was conducted in part at the Lublin University of
Technology in 2023 (Antoni Świć).
The manuscript analyzes the impact of the HVOF (high-velocity oxygen fuel) coating
spraying technology on a substrate made of a light and high-specific-strength magnesium casting
alloy from the AZ31 series. Among others, the following were examined: the influence of the spraying
distance of coatings using commercial cermet powders (WC–Co, WC–Co–Cr, and WC–Cr3C2–Ni)
on their resistance to erosive wear. It is worth emphasizing the energy savings resulting from the
possibility of spraying on the surfaces of existing machine parts to protect or regenerate them. Energy
savings result from the possibility of recycling the substrate material (AZ31), as well as from extending
the functionality of an existing element without the need to dispose of it and the energy-intensive
production of a new component. Tests have shown that the best resistance to the destructive effects
of erodent in the form of hard corundum particles is characterized by a WC–Co–Cr coating sprayed
at a distance of 320 mm.
