Residual stress measurements in laser clad aircraft aluminium alloys

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dc.contributor.authorZhuang, Wen_AU
dc.contributor.authorLiu, Qen_AU
dc.contributor.authorDjugum, Ren_AU
dc.contributor.authorSharp, PKen_AU
dc.contributor.authorParadowska, AMen_AU
dc.date.accessioned2021-02-25T04:44:58Zen_AU
dc.date.available2021-02-25T04:44:58Zen_AU
dc.date.issued2015-07-19en_AU
dc.date.statistics2021-02-25en_AU
dc.descriptionNot available online.en_AU
dc.description.abstractFatigue and corrosion damage of structural components threatens the safety and availability of civil and military aircrafts. There is no sign of relief from these threats as civil and military aircrafts worldwide are continuously being pushed further into and past their initial design fatigue lives in tight financial circumstances. Given fatigue and corrosion damage often initiates at the surface and sub-surface of the components, there has been extensive research and development worldwide focused on advanced aircraft repair technologies and surface enhancement methods. The Deep Surface Rolling (DSR) is one of advanced surface enhancement technologies that can introduce deep compressive residual stresses into the surface of aircraft metallic structure to extend its fatigue life. For the development of cost-effective aircraft structural repair technologies such as laser cladding, in this study, aluminium alloy 7075-T651 specimens with simulated corrosion damage were repaired using laser cladding technology. The surface of the laser cladding region was then processed by DSR. The experimental results from subsequent fatigue testing of laser cladded baseline, DSR and post-heat treated laser cladded specimens discovered that the DSR process can significantly increase fatigue life in comparison with the ascladded baseline. The three dimensional residual stresses were measured by neutron diffraction and the results confirmed the beneficial compressive residual stresses at the cladding surface can be achieved in depth more than 1.0 mm.en_AU
dc.identifier.citationZhuang, W., Liu, Q., Djugum, R., Sharp, P. K., & Paradowska, A. (2015). Residual stress measurements in laser clad aircraft aluminium alloys. Paper presented at the 2nd Asia Oceania Conference on Neutron Scattering: AOCNS 2015 : 19-23 July 2015, Novotel Manly Pacific, Sydney.en_AU
dc.identifier.conferenceenddate23 July 2015en_AU
dc.identifier.conferencename2nd Asia Oceania Conference on Neutron Scattering: AOCNS 2015en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate19 July 2015en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10440en_AU
dc.language.isoenen_AU
dc.publisherICMS Australasiaen_AU
dc.subjectAircraften_AU
dc.subjectAluminium alloysen_AU
dc.subjectCladdingen_AU
dc.subjectCorrosion fatigueen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectRepairen_AU
dc.subjectResidual stressesen_AU
dc.titleResidual stress measurements in laser clad aircraft aluminium alloysen_AU
dc.typeConference Abstracten_AU
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