As shown in Figure 1: due to the impact of the grinding ball, the surface of the lining plate is plastically deformed along the load direction, and presents a flat, uniform and consistent fracture mode. In addition, the high-strength and hard ferrochromium carbides limit the deformation area of the material, making martensite phase become a weak link and the main area of material failure.
Further magnifying the wear surface, as shown in Figure 2, it can be seen that many tiny holes are distributed on the lining plate surface. The main reason for this phenomenon is that there is a corrosive wear environment in the wet ball mill. After the corrosion of the matrix structure, even though the carbides are extremely hard, the matrix structure has no attachment foundation, which will cause peeling off under the alternating load of grinding balls and abrasives, This is a very important reason for the short service life of the inner liner of the wet ball mill.
