Mechanical performances of the interface between the substrate and deposited material in aluminium wire Direct Energy Deposition

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dc.contributor.authorEimer, Eloise
dc.contributor.authorWilliams, Stewart
dc.contributor.authorDing, Jialuo
dc.contributor.authorGanguly, Supriyo
dc.contributor.authorChehab, Bechir
dc.date.accessioned2023-01-09T14:42:38Z
dc.date.available2023-01-09T14:42:38Z
dc.date.issued2023-01-06
dc.description.abstractWire and Arc Additive manufacturing (WAAM) is a Direct Energy Deposition process suitable for the manufacture of large aluminium components. Additive Manufacturing can enable the production of functionally graded structure which could be done by integrating the substrate required to start the deposition into the final component. This paper aims to assess the possibility of including a substrate in a component by investigating the mechanical performances of the interface between a wrought plate and WAAM deposit. Four substrates alloys and 2319 WAAM alloy were investigated. Inter-layer rolling and heat treatment, process steps known for improving the properties of WAAM deposit, were implemented. Each interface was examined using microhardness profiles, tensile tests, post rupture fractography and microstructural analysis. The WAAM deposit hardness was lower than that of the substrate in the as-deposited condition. Although the interface had no impact when using the same alloy for both substrate and wire, the weakest point of the combination was at the interface in dissimilar alloy combination. Heat treatment reduced the properties difference between the substrate and WAAM deposit. Inter-pass rolling strengthen the WAAM deposit without impacting the substrate and eliminated the micro crack that occasionally formed in the fusion zone in the as-deposited condition.en_UK
dc.identifier.citationEimer E, Williams S, Ding J, et al., (2023) Mechanical performances of the interface between the substrate and deposited material in aluminium wire Direct Energy Deposition. Materials and Design, Volume 225, January 2023, Article number 111594en_UK
dc.identifier.issn0264-1275
dc.identifier.urihttps://doi.org/10.1016/j.matdes.2023.111594
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18916
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectWAAMen_UK
dc.subjectadditive manufacturingen_UK
dc.subjecthybriden_UK
dc.subjectaluminiumen_UK
dc.subjectDEDen_UK
dc.titleMechanical performances of the interface between the substrate and deposited material in aluminium wire Direct Energy Depositionen_UK
dc.typeArticleen_UK

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