Mathematical Simulation of Process of Coating Forming by Supersonic Gas-Flame Spraying

Peculiarities of numerical simulation of processes of forming the metallic coatings by the supersonic gas-flame spraying are considered. Collisions of a single particle moving at a velocity of 500–1000 m/c with a barrier are numerically studied. A model of ideal elastic-plastic medium is used for description of the interaction process. The analysis of dynamics of impact interaction of particles with the barrier and creation of caverns in it is performed. It is shown that under deforming the particle takes a disc-shape form with the complex cross section. The picture of change of the particle’s form, depth of its penetration into the barrier and height of the deformed particle above the barrier surface is obtained.