Elastic moduli and elastic anisotropy of cold sprayed metallic coatings

Resonant ultrasound spectroscopy is applied to analyze the elastic anisotropy of thick copper, aluminum, titanium, and nickel coatings prepared by cold spraying and to determine the respective elastic moduli. The results show that the coatings exhibit only weak deviations from perfect isotropy, and the obtained elastic moduli are comparable with those of the corresponding polycrystalline bulks. The increased internal friction observed in some of the studied coatings may indicate grain refinement and consequent grain boundary sliding.

Keywords

Kinetic spray, CGDS, Elastic properties, Metals and alloys, Deposition, Resonant Ultrasound Spectroscopy

Citation

Surface and Coatings Technology. 2016, vol. 291, issue N/A, p. 342-347.
http://www.sciencedirect.com/science/article/pii/S0257897216301165

Document type

Peer-reviewed

Document version

Published version

Language of document

en

Document licence

(C) Elsevier