Microstructure, hardness and mechanical properties of two different unalloyed tantalum wires deposited via wire + arc additive manufacture

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dc.contributor.authorMarinelli, Gianrocco
dc.contributor.authorMartina, Filomeno
dc.contributor.authorGanguly, Supriyo
dc.contributor.authorWilliams, Stewart W.
dc.date.accessioned2020-01-21T11:14:41Z
dc.date.available2020-01-21T11:14:41Z
dc.date.issued2019-05-30
dc.description.abstractAn innovative way of producing large-scale unalloyed tantalum parts, based on the Wire + Arc Additive Manufacturing process, has been developed in this study. Two different unalloyed tantalum wires have been used to deposit 200-mm-long structures in tantalum. The effect of the wire chemistry on microstructure, hardness, porosity, mechanical properties and strain localisation has been investigated. The deposits showed high integrity and excellent mechanical properties, with yield strength, ultimate tensile strength and elongation as high as 234 MPa, 261 MPa, and 36%, respectively. Indeed, yield strength was higher than commercially available tantalum, even though, in this study, the grains were large and had a high aspect ratio. Wire + Arc Additive Manufacture has clearly shown the potential to produce tantalum components with relatively low cost and reduced lead time, thus offering a new robust and viable manufacturing route.en_UK
dc.identifier.citationMarinelli G, Martina F, Ganguly S, Williams S. (2020) Microstructure, hardness and mechanical properties of two different unalloyed tantalum wires deposited via wire + arc additive manufacture, International Journal of Refractory Metals and Hard Materials, Volume 83, September 2019, Article number 104974en_UK
dc.identifier.issn0263-4368
dc.identifier.urihttps://doi.org/10.1016/j.ijrmhm.2019.104974
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14972
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.subjectHardnessen_UK
dc.subjectMicrostructureen_UK
dc.subjectAdditive manufacturingen_UK
dc.subjectWAAMen_UK
dc.subjectTantalumen_UK
dc.subjectTensile propertiesen_UK
dc.titleMicrostructure, hardness and mechanical properties of two different unalloyed tantalum wires deposited via wire + arc additive manufactureen_UK
dc.typeArticleen_UK

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