Characterisation of dispersions within annealed HVOLF thermally sprayed AlSnCu coatings

Kong, Chang-Jing; Moldovan, Grigore; Fay, Mike W.; McCartney, D. Graham; Brown, Paul D.

Abstract

High velocity oxy-liquid fuel (HVOLF) AlSnCu coatings are characterised following annealing for up to 5 hours at 300°C. A combination of statistical analysis of BSE images and TEM observations demonstrate the decrease in the number of sub-micron and nanoscale Sn particles with annealing, commensurate with a decrease in the coating microhardness. TEM evidence further suggests the coarsening of nanoscale Sn through a mechanism of a liquid phase migration within the Al matrix. EELS and EFTEM additionally allow the identification of the precipitation of theta'.

Citation

Kong, C.-J., Moldovan, G., Fay, M. W., McCartney, D. G., & Brown, P. D. (2004). Characterisation of dispersions within annealed HVOLF thermally sprayed AlSnCu coatings. In S. McVitie, & D. McComb (Eds.), Electron Microscopy and Analysis 2003: Proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, University of Oxford, 3-5 September 2003. Institute of Physics Publishing

• Publication Date: Jan 1, 2004
• Deposit Date: Mar 25, 2011
• Publicly Available Date: Mar 25, 2011
• Journal: Institute of Physics Conference Series
• Peer Reviewed: Peer Reviewed
• Issue: 179
• Series Title: Institute of Physics conference series
• Book Title: Electron Microscopy and Analysis 2003: Proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, University of Oxford, 3-5 September 2003
• ISBN: 750309679
• Keywords: TEM; EELS; EFTEM; HVOLF; AlSnCu
• Public URL: https://nottingham-repository.worktribe.com/output/1021586
• Related Public URLs: http://iopscience.iop.org/