Simulation and Parametric Analysis of Particle Deposition Behavior during Spraying of Hastelloy on 321 Stainless Steel Substrate

Abstract In the thermal spraying process, the particle deposition behavior has a large impact on the coating quality. In this paper, based on the coupled Eulerian Lagrangian (CEL) method, three-dimensional single-particle and multi-particle deposition models were constructed to reveal the evolution of temperature, strain and stress fields during particle deposition, and to analyze the relationship between particle size, particle velocity and particle and coating bonding. The results show that using 321 stainless steel as the substrate and Hastelloy as the coating material, and using supersonic flame spraying, the coating bonding is expected to be good and suitable for spraying.