The density of bulk storage bins will affect the wear process, but the wear of materials mainly occurs in the process of surface deformation and fracture. Therefore, all the favorable factors for improving the surface strength and toughness of the friction pair will improve its wear resistance and increase the strength and toughness of the material. Under the condition of high density of bulk storage bins, the material can not only increase the effective bearing area, but also fully play the role of alloying. Of course, the wear resistance of the bulk storage bins will also be affected by the shape and size of the pores. Large and sharp pores are unfavorable to the performance of the material.