Study on Erosion Behavior of Laser Wire Feeding Cladding High-Manganese Steel Coatings

High-manganese steel (HMnS) coating was prepared using laser wire feeding cladding technology. Erosion damage behavior and erosion rate of both the HMnS substrate were investigated at room temperature an testing machine. SEM/EDS, XRD, EPMA, microhardness analyses used to characterize cross sections matrix, as well morphology, phase composition, eroded surface. The orientation characteristics, grain size surfaces examined by EBSD technique. mechanism under different angles revealed. By analyzing plastic deformation subsurface coating, impact hardening high-manganese during process investigated. results demonstrated that through cladding, exhibited excellent metallurgical bonding with substrate, featuring a dense microstructure without any cracks. coatings lower than angles, maximum occurring 35° 50°. low-angle primarily attributed micro-cutting particles minor amount hammering. At 90° angle, dominant factor After erosion, sublayer increased 380HV0.3 359HV0.3, respectively. Dendrite segregation, refined grains, boundaries, localized dislocations, generated contributed HMnS. These factors collectively enhance coatings, thereby providing resistance.