Fig. 1. Powder morphologies and particle size distributions. (a) FeCoNiCr powder morphology; (b) WC powder morphology; (c) morphology of mixed FeCoNiCr and WC powders; (d) FeCoNiCr powder size; (e) WC powder size

Fig. 2. Laser cladding equipment and principle. (a) Laser cladding equipment; (b) schematic diagram of laser cladding principle

Fig. 3. Macro morphologies and flaw detection results of high-entropy alloy composite coatings with different WC contents

Fig. 4. X-ray diffraction patterns of high-entropy alloy composite coatings with different WC contents

Fig. 5. Microstructures of high-entropy alloy composite coatings with different WC contents

Fig. 6. Mixing entropy of high-entropy alloy composite coatings with different WC contents and morohologies and map scanning images around WC particle. (a) Mixing entropy; (b)(c) morohologies and map scanning images of WC particle and its surrounding structure

Fig. 7. Sectional hardness of high-entropy alloy composite coatings with different WC contents. (a) Hardness nephograms; (b) average hardness

Fig. 8. Friction coefficient and wear rate of high-entropy alloy composite coatings with different WC contents. (a) Friction coefficient curves; (b) wear rate and friction coefficient

Fig. 9. Friction and wear morphologies and three-dimensional profile morphologies of high-entropy alloy composite coatings with different WC contents

Fig. 10. Electrochemical polarization curves and impedance Nyquist diagram of high-entropy alloy composite coatings with different WC contents. (a) Electrochemical polarization curves; (b) Nyquist diagram