▎ 摘　　要

Solid particle erosion experiments have been conducted to study the erosion behavior of multiple graphenebased coatings. In this paper, the effects of three factors on the erosion resistance have been investigated: (1) The effect of using graphene-based coatings (2) The effect of using single and multilayer coatings with alternating graphene and polyurethane layers, (3) The effects of angles of attack and erosion duration on the single and multilayer graphene coatings. The investigation also explored the coating surface quality, adhesion, and coating hardness. Finally, two parameters were used to evaluate the efficiency of the coating systems: Material removal and the depth of the erosion scar. It has been found that a single layer of graphene coating, H-146, provided the highest erosion resistance with improvements in material removal and maximum depth up to 19% and 8%, respectively. On the other hand, two layers of polyurethane provided material removal improvements up to 38%, while a combination of polyurethane layer on top of IA-700 (graphene coating) showed the best erosion resistance behavior at normal impact with improvements reaching 15%.