Cold spraying: From process fundamentals towards advanced applications

摘要: Abstract Cold spraying (CS) is a relatively new material deposition technique based on the phenomenon of high-velocity particle/substrate impact. In this process, powder accelerated to supersonic speed in specially developed nozzles which air, nitrogen or helium usually employed as carrier gas. absence melting, oxidation and thermal decomposition particle in-flight during CS, deposited coatings demonstrate low residual stresses preserve initial phase composition source material, are important advantages for temperature sensitive powders including nanostructures nanocomposites. present paper review field development cold spray technology performed. Different scientific technological aspects CS such surface activation, nozzle geometry, preheating, injection, control spatial resolution flux proper selection parameters discussed.