This study investigates microstructure and properties of HVOF coatings treated with laser on magnesium alloys, revealing improvements post-treatment.
This study aimed to investigate and compare the effect of three different scanning rate laser beam heat treatments on WC-CrC-Ni coatings to identify if this method would increase the properties of coatings deposited by HVOF onto magnesium alloy substrate. The paper presents a preliminary investigation of the microstructure and selected properties of coatings deposited by thermal spraying HVOF using commercially available WC-CrC-Ni powder and then laser treated with different values of the laser scanning rate (YLS-4000). After laser heat treatment, the coatings were investigated regarding microstructure features and selected properties such as microhardness and dry sliding wear. The results reveal that the porosity of the laser-treated coatings had reduced in all samples while microhardness and surface roughness (Ra) strongly improved after laser treatment.
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Jonda et al. (2025) studied this question.
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