Structure and Properties of Cold Spray Coatings
Cold spray coatings are considered promising for surface protection of light metal substrates but the mechanisms of bonding and coating build-up are still poorly understood and are the subject of continuing debate. A variety of coating/substrate combinations have been characterised in detail using electron microscopy to examine the nature of the interparticle and particle/substrate interfaces. Through-thickness residual stress profiles obtained via neutron diffraction show that the internal stress varies significantly depending on the coating materials. The work will present a picture of the cold spray deposition process using different material examples.
Jian-Feng Nie and Allan Morton
K. Spencer et al., "Structure and Properties of Cold Spray Coatings", Materials Science Forum, Vols. 654-656, pp. 1880-1883, 2010