Residual stresses in cold spray Al coatings: the effect of alloying and of process parameters

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dc.contributor.authorSpencer, Ken_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorMatthews, Nen_AU
dc.contributor.authorZhang, MXen_AU
dc.date.accessioned2014-03-04T04:24:44Zen_AU
dc.date.available2014-03-04T04:24:44Zen_AU
dc.date.issued2012-05-25en_AU
dc.date.statistics2014-03-04en_AU
dc.description.abstractAl and Al alloy cold spray coatings were deposited on Mg substrates using two different cold spray systems – a Kinetic Metallization system (convergent barrel, sonic nozzle) and a CGT system (convergent-divergent barrel, supersonic nozzle). The residual stress profiles in the coatings were measured using neutron diffraction with high spatial resolution. In the first part of the study, the residual stress profile in pure Al coatings was compared when sprayed using the Kinetic Metallization system (using both helium and nitrogen as the driving gas), and with the CGT system using nitrogen gas. In this way the effect of impact velocity and process temperature was studied. In the second part of the study, the residual stress profile was compared in coatings of pure Al, 7075 Al and 6061 Al sprayed using the same process conditions in the CGT system. The residual stress profiles depend more on the alloy content, i.e. intrinsic resistance to plastic deformation, than on the processing conditions, and this is interpreted using a simple model that incorporates the effect of peening stresses in the cold spray process. © 2012, Elsevier Ltd.en_AU
dc.identifier.citationSpencer, K., Luzin, V., Matthews, N., & Zhang, M. X. (2012). Residual stresses in cold spray Al coatings: the effect of alloying and of process parameters. Surface and Coatings Technology, 206 (19-20), 4249-4255. doi:10.1016/j.surfcoat.2012.04.034en_AU
dc.identifier.govdoc4445en_AU
dc.identifier.issn0257-8972en_AU
dc.identifier.issue19-20en_AU
dc.identifier.journaltitleSurface and Coatings Technologyen_AU
dc.identifier.pagination4249-4255en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.surfcoat.2012.04.034en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5237en_AU
dc.identifier.volume206en_AU
dc.language.isoenen_AU
dc.publisherElsevier Scienceen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectKineticsen_AU
dc.subjectStressesen_AU
dc.subjectAluminiumen_AU
dc.subjectParticlesen_AU
dc.subjectHeliumen_AU
dc.titleResidual stresses in cold spray Al coatings: the effect of alloying and of process parametersen_AU
dc.typeJournal Articleen_AU
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