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Deposition of Amorphous Aluminium Powder Using Cold Spray

Author: P.K. Koh, P. Cheang, SIM University; K. Loke, Singapore Technologies Kinetics Ltd.; S.C.M. Yu, Nanyang Technological University; S.M. Ang, Swinburne University of Technology   |   Document Download   |   Product code: ZCP2012ITSCCSP249

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Deposition of amorphous aluminium powder using cold spray technology as a corrosion prevention measure was studied. Amorphous aluminium (Al-Ni-Ce) powder was successfully deposited on 7000-series aluminium substrates using cold spray parameters of 1.7 MPa under compressed air and temperature of 450oC. The coatings were subjected to tensile bond strength measurement and comparative studies with cold sprayed pure Al6061 coatings were conducted. The results obtained showed that the amorphous aluminium coatings exhibited better adhesive strength. In addition, salt-water immersion test was conducted. The Al-Ni-Ce coating not only demonstrated better corrosion resistance but also exhibited evidence of passivation of surface imperfections such as scratches in the coatings.
  • From: Thermal Spray 2012: Proceedings of the International Thermal Spray Conference (ASM International)
  • Published: May 01, 2012
  • Pages: 5
  • Review Type: Peer reviewed