“…Recently, the WC p /iron matrix surface composites have been extensively used in slurry pump, slurry elbow pipe, liner plate, roll fitting and so forth. These composites can be fabricated by cast infiltration [ 2 , 11 , 12 ], powder metallurgy [ 3 ], laser cladding [ 5 , 6 , 13 , 14 , 15 , 16 , 17 ], and so on, to generate great metallurgical bonding between the surface composite layer and the substrate due to the perfect wettability between WC p and molten ferrous alloy.…”