Fig. 1. Macro morphology and microstructure of the Ni-WC cladding. (a) Macro photographs of laser cladding; (b) micrographs of the cladding interface; (c) photograph of cladding sample after shear failure; (d) fracture topography of sheared sample; (e) metallographic structure of Ni-WC cladding layer; (f) metallographic structure of cladding interface and substrate; (g) SEM diagram of Ni-WC cladding layer; (h) SEM diagram of Q960E substrate

Fig. 2. SEM and EDS distributions of microstructure of Ni-WC cladding layer. (a) Microstructure diagram of the cladding layer; (b) distribution of element C; (c) distribution of element Ni; (d) distribution of element Cu; (e) distribution of element W

Fig. 3. XRD pattern of Ni-WC cladding layer

Fig. 4. Microhardness distribution of sample cross-section of Ni-WC cladding layer

Fig. 5. Wear micrograph and performance of substrate and cladding layer. (a) Wear topography of Q960E substrate; (b) wear topography of Ni-WC cladding; (c) comparison of wear resistance performance