High‑temperature failure and microstructural investigation of wire‑arc additive manufactured Rene 41

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dc.contributor.authorJames, William Sean
dc.contributor.authorGanguly, Supriyo
dc.contributor.authorRodrigues Pardal, Goncalo
dc.date.accessioned2023-01-26T10:10:02Z
dc.date.available2023-01-26T10:10:02Z
dc.date.issued2023-01-11
dc.description.abstractIn developing a wire-arc plasma direct energy deposition process for creep-resistant alloys used in high-speed flight applications, structures were built from nickel-based superalloy Rene 41. Samples of additive manufacturing (AM) material were analysed for their microstructural and mechanical properties, in both as-deposited (AD) and heat-treated (HT) conditions. Tensile specimens were tested at room temperature, 538, 760, and 1000 °C. Macroscopically, large columnar grains made up of a typical dendritic structure were observed. Microscopically, significant segregation of heavier elements, grain boundary precipitates, and secondary phases were observed, with key differences observed in HT material. There was a clear distinction between failure modes at different testing temperatures and between AD and HT variants. A fractographic investigation found a progressive move from brittle to ductile fracture with increasing testing temperature in both AD and HT conditions, as well as microstructural features which support this observation.en_UK
dc.description.sponsorshipDSTLen_UK
dc.identifier.citationJames W, Ganguly S, Rodrigues Pardal G. (2023) High‑temperature failure and microstructural investigation of wire‑arc additive manufactured Rene 41, The International Journal of Advanced Manufacturing Technology, Volume 125, Issue 5-6, March 2023, pp. 2485–2501en_UK
dc.identifier.eissn1433-3015
dc.identifier.issn0268-3768
dc.identifier.urihttps://doi.org/10.1007/s00170-023-10885-5
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19016
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAdditive manufacturingen_UK
dc.subjectDirect energy depositionen_UK
dc.subjectMechanical propertiesen_UK
dc.subjectFractographyen_UK
dc.subjectMicrostructureen_UK
dc.subjectRene 41en_UK
dc.titleHigh‑temperature failure and microstructural investigation of wire‑arc additive manufactured Rene 41en_UK
dc.typeArticleen_UK

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