Bonding Mechanisms in Cold Spraying: The Contributions of Metallurgical and Mechanical Components

  title={Bonding Mechanisms in Cold Spraying: The Contributions of Metallurgical and Mechanical Components},
  author={Tanvir Hussain and D. G. McCartney and P.H. Shipway and D. Zhang},
  journal={Journal of Thermal Spray Technology},
The mechanism of bonding in cold spraying is still a matter of some debate. In this work, copper has been cold sprayed onto aluminium alloy substrates, the surfaces of which had been prepared in a variety of ways. The coating-substrate bonding was assessed via a novel intermetallic growth method along with adhesive pull-off testing, and related to the substrate preparation method. The bond strength has been rationalized in terms of a modified composite strength model, with two operative bonding… 

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