Influence of pre-heated Al 6061 substrate temperature on the residual stresses of multipass Al coatings deposited by cold spray

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DOIResolve DOI: http://doi.org/10.1007/s11666-010-9596-7
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TypeArticle
Journal titleJournal of Thermal Spray Technology
Volume20
Issue1-2
Pages243251; # of pages: 9
Subjectaluminum; cold spray; curvature; Modified Layer; Removal Method; residual stress; XRD
AbstractIn this work, the influence of the substrate temperature on the deposition efficiency, on the coating properties and residual stress was investigated. Pure Al coatings were deposited on Al 6061 alloy substrates using a CGT Kinetics 3000 cold spray system. The substrate temperature was in a range between 20(room temperature)and 375C and was kept nearly constant during a given deposition while all the other deposition parameters were unchanged. The deposited coatings were quenched in water (within 1 min from the deposition) and then characterized. The residual stress was determined by Almen gage method, Modified Layer Removal Method, and XRD in order to identify both the mean coating stress and the stress profile through the coating thickness from the surface to the coatingsubstrate interface. The residual stress results obtained by these three methods were compared and discussed. The coating morphology and porosity were investigated using optical and scanning electron microscopy.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Industrial Materials Institute
Peer reviewedYes
NRC number53844
NPARC number16872062
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Record identifier1f57c82f-4c82-4c12-bbb1-3e21ed878eba
Record created2011-02-16
Record modified2017-03-23
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