Evaluation of the residual stress in the cold spray technique using smooth particle hydrodynamics modelling and neutron diffraction

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dc.contributor.authorSaleh, Men_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorSpencer, Ken_AU
dc.date.accessioned2016-10-25T22:36:55Zen_AU
dc.date.available2016-10-25T22:36:55Zen_AU
dc.date.issued2014-02en_AU
dc.date.statistics2016-10-26en_AU
dc.description.abstractCold spray is a material deposition technique in which powdered metals are deposited onto metallic and glass substrates as a means of improving functionality, repair or protection of the underlying substrate. The residual stress that builds up in the material during spraying is closely linked to the coating’s integrity and the bonding mechanism. Neutron diffraction residual stresses measurements were carried out at the OPAL research reactor, ANSTO, using the KOWARI strain scanner to investigate an Al-6061 sample with a fine through-thickness resolution of 0.5 mm. The experimentally determined through thickness stress profiles of the macroscopically thick coatings were used to validate FE calculations made for 100 μm thick coatings using the Smooth Particle Hydrodynamics, SPH, techniques. A pronounced plastic strain gradient was apparent in the tested and modelled samples indicative of the significant residual macro-stresses which develop in the cladding/substrate during the deposition. Around the deposited particle’s periphery (in the jetting region) the temperatures are significant, this lends itself to the presence of grain refinement at the periphery of sprayed particles and the propagation of dynamic recrystallization which is closely coupled with the thermal softening of the particle. © 2014 Trans Tech Publications.en_AU
dc.identifier.citationSaleh, M., Luzin, V. & Spencer, K. (2014). Evaluation of the residual stress in the cold spray technique using smooth particle hydrodynamics modelling and neutron diffraction. Paper presented at the 7th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS VII 2013), September 10-12, 2013, Sydney, Australia. In Materials Science Forum, 777, 205-212. doi:10.4028/www.scientific.net/MSF.777.205en_AU
dc.identifier.conferenceenddate12 September 2013en_AU
dc.identifier.conferencename7th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS VII 2013)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate10 September 2013en_AU
dc.identifier.govdoc7419en_AU
dc.identifier.issn1662-9752en_AU
dc.identifier.journaltitleMaterials Science Forumen_AU
dc.identifier.pagination205-212en_AU
dc.identifier.urihttp://dx.doi.org/10.4028/www.scientific.net/MSF.777.205en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7897en_AU
dc.identifier.volume777en_AU
dc.language.isoenen_AU
dc.publisherTrans Tech Publications Ltden_AU
dc.subjectMetalsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectOPAL Reactoren_AU
dc.subjectResidual stressesen_AU
dc.subjectHydrodynamicsen_AU
dc.subjectCrystallizationen_AU
dc.titleEvaluation of the residual stress in the cold spray technique using smooth particle hydrodynamics modelling and neutron diffractionen_AU
dc.typeConference Paperen_AU
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