Elastic moduli and elastic anisotropy of cold sprayed metallic coatings
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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.
KeywordsKinetic spray, CGDS, Elastic properties, Metals and alloys, Deposition, Resonant Ultrasound Spectroscopy
Document typePeer reviewed
Document versionFinal PDF
SourceSurface and Coatings Technology. 2016, vol. 291, issue N/A, p. 342-347.