Wear mechanism study of rocket sled shoe material 30CrMnSiNi2A

The material used for the rocket sleds in this study was 30CrMnSiNi2A. The research focused on examining the wear patterns and elemental distribution of the 30CrMnSiNi2A alloy under high-speed (34.56 m/s, 69.12 m/s, 101 m/s) and heavy-load (150–600 N) conditions through both experimental and simulation methods. A conceptual wear model was developed by integrating experimental results with numerical outcomes. At speeds of 34.56 m/s and 69.12 m/s, the friction coefficient and wear rate decreased with increasing applied pressure. At 101 m/s, the friction coefficient was less influenced by pressure, whereas the wear rate increased with increasing pressure. Simulation results show that under a load of 600 N, the von Mises stress consistently increased with increasing speed.