COATING
Vacuum-fused coating displayed an inter-diffusion (mixing white) layer, where coating and substrate constituents have been mixed to a large extent. (W 420) (1)
Vacuum-fused coating = Revestimento a vácuo
The images of the cross sections clearly show layered structures of the impacted molten particles or lamella, with different amounts of coating porosity and oxide stringers typical for thermal sprayed coatings. (W 262) (2)
Sprayed coating = Revestimento pulverizado
Further salt spray exposure tests were undertaken for the coated specimens sealed with sol-gel, which displayed significant improvement in the corrosion resistance afforded by the sealed coating to the underlying aluminium substrate. (W 363) (3)
Sealed coating = Revestimento selado
(1) The corrosion behaviour of high velocity oxy-fuel (HVOF) sprayed Ni-Cr-Si-B coatings
S Shrestha and A Sturgeon, Cambridge, UK; T Hodgkiess, Glasgow, UK; A Neville, Edinburgh, UK
Paper 95 presented at ITSC 2002 International Thermal Spray Conference, 4-6 March 2002, Essen, Germany.
(2) Characteristics and electrochemical corrosion behaviour of thermal sprayed aluminium (TSA) coatings prepared by various wire thermal spray processes.
S. Shrestha and A. Sturgeon
TWI Ltd
E-mail: suman.shrestha@twi.co.uk
Paper published in EUROCORR 2005 Lisbon, Portugal, 4-8 September 2005.
(3) Some preliminary evaluations of black coating on aluminium AA2219 alloy produced by plasma electrolytic oxidation (PEO) process for space applications.
S. Shrestha (1), A. Merstallinger (2), D. Sickert (3) and B. D. Dunn (4)
(1) TWI Ltd, Cambridge, United Kingdom,
Email: suman.shrestha@twi.co.uk
(2) ARC Seibersdorf research GmbH, Austria,
Email: andreas.merstallinger@arcs.ac.at
(3) Dresden University of Technology, Germany,
Email: Daniel.Sickert@mailbox.tu-dresden.de
(4) European Space Agency, Noordwijk ZH, The Netherlands,
Email: Barrie.Dunn@esa.int
Paper presented at 9th International Symposium on Materials in a Space Environment, 16-20 June 2003, ESTEC, Noordwijk, The Netherlands.