Fig. 1. Fiber laser cladding equipment diagram

Fig. 2. Micrograph of FeCrNiSi powder

Fig. 3. Microstructures of FeCrNiSi alloy cladding layer on GCr15 steel. (a) Heat affected zone; (b) fusion transition zone; (c) the central area of the cladding layer; (d) the surface area of the cladding layer

Fig. 4. Microstructures of cladding layer of different laser powers. (a) 2400 W; (b) 2500 W; (c) 2600 W; (d) 2700 W

Fig. 5. Effect of laser power on dendrite spacing of laser cladding layer

Fig. 6. Microstructures of cladding layer at different scanning speeds. (a) 4 mm/s; (b) 5 mm/s; (c) 6 mm/s; (d) 7 mm/s

Fig. 7. Effect of the scanning speed of laser on the dendrite spacing of cladding layer

Fig. 8. Effects of laser parameters on the microhardness. (a) Laser power; (b) scanning speed

Fig. 9. Friction and wear properties of cladding layer at different scanning speeds. (a) Schematic of friction and wear; (b) friction coefficient curves of cladding layer at different scanning speeds; (c) the results of mass loss of debris

Fig. 10. Friction and wear properties of cladding layer at different scanning speeds. (a) v=5 mm/s; (b) v=6 mm/s; (c) v=7 mm/s