Home – Home – Jornals – Thermophysics and Aeromechanics 2017 number 2

This paper presents experimental and simulation results of cold spray coating deposi-tion using the mask placed above the plane substrate at different distances. Velocities of aluminum (mean size ~ 30 µm) and copper (mean size ~ 60 µm) particles in the vicinity of the mask are determined. It was found that particle velocities have angular distribution in flow with a representative standard deviation of 1.5–2 degrees. Modeling of coating formation behind the mask with account for this distribution was developed. The results of model agree with experimental data confirming the importance of particle angular distribution for coating deposition process in the masked area.