Abstract
In Cold Spray, bonding is formed between substrate and the particles and between
particles by impact which causes material deformation and temperature rise. During impact process,
plastic deformation and frictional interaction of materials generate heat and strains/stresses. In this
paper, a numerical study on multiple particles deposition process show that the plastic equivalent
strain (von misses stress) and the temperature values, compare to a single particle impact under
same conditions, are higher in multiple particles compared to a single particle impact. Based on this
observation, there is a possibility of the bonding mechanism for the whole film coating better
explained using the multiple particles modeling than is predicted using single particle analysis
However the actual impacting mechanism in the multiple particle interaction is not yet fully
understood and still requires further investigation.