Deep surface rolling for fatigue life enhancement of laser clad aircraft aluminium alloy

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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.accessioned2021-02-11T01:21:37Zen_AU
dc.date.available2021-02-11T01:21:37Zen_AU
dc.date.issued2014-11-30en_AU
dc.date.statistics2021-02-08en_AU
dc.description.abstractDeep surface rolling can introduce deep compressive residual stresses into the surface of aircraft metallic structure to extend its fatigue life. To develop cost-effective aircraft structural repair technologies such as laser cladding, deep surface rolling was considered as an advanced post-repair surface enhancement technology. In this study, aluminium alloy 7075-T651 specimens with a blend-out region were first repaired using laser cladding technology. The surface of the laser cladding region was then treated by deep surface rolling. Fatigue testing was subsequently conducted for the laser clad, deep surface rolled and post-heat treated laser clad specimens. It was found that deep surface rolling can significantly improve the fatigue life in comparison with the laser clad baseline repair. In addition, three dimensional residual stresses were measured using neutron diffraction techniques. The results demonstrate that beneficial compressive residual stresses induced by deep surface rolling can reach considerable depths (more than 1.0 mm) below the laser clad surface. © 2014 Elsevier B.V.en_AU
dc.identifier.citationZhuang, W., Liu, Q., Djugum, R., Sharp, P. K., & Paradowska, A. (2014). Deep surface rolling for fatigue life enhancement of laser clad aircraft aluminium alloy. Applied Surface Science, 320, 558-562. doi:10.1016/j.apsusc.2014.09.139en_AU
dc.identifier.issn0169-4332en_AU
dc.identifier.journaltitleApplied Surface Scienceen_AU
dc.identifier.pagination558-562en_AU
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2014.09.139en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10363en_AU
dc.identifier.volume320en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCladdingen_AU
dc.subjectAluminium alloysen_AU
dc.subjectFatigueen_AU
dc.subjectResidual stressesen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectLasersen_AU
dc.titleDeep surface rolling for fatigue life enhancement of laser clad aircraft aluminium alloyen_AU
dc.typeJournal Articleen_AU
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