The strengthening effect of inter-layer cold working and post-deposition heat treatment on the additively manufactured Al-6.3Cu alloy

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dc.contributor.authorGu, Jianglong
dc.contributor.authorDing, Jialuo
dc.contributor.authorWilliams, Stewart W.
dc.contributor.authorGu, Huimin
dc.contributor.authorBai, Jing
dc.contributor.authorZhai, Yuchun
dc.contributor.authorMa, Peihua
dc.date.accessioned2019-12-13T10:28:19Z
dc.date.available2019-12-13T10:28:19Z
dc.date.issued2015-10-26
dc.description.abstractWire + Arc Additive Manufacture (WAAM) attracts great interest from the aerospace industry for producing components with aluminum alloys, particularly Al-Cu alloy of the 2000 series such as 2219 alloy. However the application is restricted by the low strength properties of the as-deposited WAAM metal. In this study two strengthening methods were investigated - inter-layer cold working and post-deposition heat treatment. Straight wall samples were prepared with 2319 aluminum alloy wire. Inter-layer rolling with loads of 15 kN, 30 kN and 45 kN were employed during deposition. The ultimate tensile strength (UTS) and yield strength (YS) of the inter-layer rolled alloy with 45 kN load can achieve 314. MPa and 244. MPa respectively. The influence of post-deposition T6 heat treatment was investigated on the WAAM alloy with or without rolling. Compared with inter-layer rolling, post-deposition heat treatment can provide much greater enhancement of the strength. After T6 treatment, the UTS and YS of both of the as-deposited and 45 kN rolled alloys exceeded 450. MPa and 305. MPa respectively, which are higher than the properties of the wrought 2219-T6 alloy. The strengthening mechanisms of this additively manufactured Al-6.3Cu alloy were investigated through microstructure analysis.en_UK
dc.identifier.citationGu J, Ding J, Williams S, et al., (2016) The strengthening effect of inter-layer cold working and post-deposition heat treatment on the additively manufactured Al-6.3Cu alloy. Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, Volume 651, January 2016, pp. 18-26en_UK
dc.identifier.cris2748355
dc.identifier.issn0921-5093
dc.identifier.urihttps://doi.org/10.1016/j.msea.2015.10.101
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14833
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAluminum alloyen_UK
dc.subjectHeat treatmenten_UK
dc.subjectHigh strengthen_UK
dc.subjectWire + Arc Additive Manufacture (WAAM)en_UK
dc.subjectHigh strengthen_UK
dc.subjectRollingen_UK
dc.titleThe strengthening effect of inter-layer cold working and post-deposition heat treatment on the additively manufactured Al-6.3Cu alloyen_UK
dc.typeArticleen_UK

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