Residual stresses in titanium aerospace components formed via additive manufacture

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dc.contributor.authorHoye, Nen_AU
dc.contributor.authorLi, Hen_AU
dc.contributor.authorCuiuri, Den_AU
dc.contributor.authorParadowska, AMen_AU
dc.date.accessioned2021-02-25T03:11:23Zen_AU
dc.date.available2021-02-25T03:11:23Zen_AU
dc.date.issued2013-12-02en_AU
dc.date.statistics2021-02-25en_AU
dc.descriptionNot available online. Conference Handbook held by ANSTO Library at DDC 539.758/15en_AU
dc.description.abstractAdditive manufacturing (AM) using arc-wire based metal deposition has been suggested as one method to reduce the costs associated with production of titanium components, particularly within the aerospace sector. In the present study gas tungsten arc welding (GTAW) with automated wire addition was used to additively manufacture (AM) a representative thin-walled aerospace component from Ti-6AI-4V in a layer-wise manner. Residual strains, and hence stresses, were analysed quantitatively using neutron diffraction techniques on the KOWARI strain scanner at the OPAL research facility operated by the Australian Nuclear Science and Technology Organisation (ANSTO). Results showed that residual strains within such an AM sample could be measured with relative ease using the neutron diffraction method. Residual stress levels were found to be greatest in the longitudinal direction and concentrated at the interface between the base plate and deposited wall. Difficulties in measurement of lattice strains in some discrete locations were ascribed to the formation of the formation of localised texturing where α-Ti laths form in aligned colonies within prior β-Ti grain boundaries upon cooling. Observations of microstructure reveal 'basket-weave' morphology typical of welds in Ti-6AI-4V. Microhardness measurements show a drop in hardness in the top region of the deposit, indicating a dependence on thermal cycling from sequential welds. Time-of-flight neutron diffraction has been proposed to analyse stresses in both the α-Ti and β-Ti phases simultaneously as well as inter-granular strains. This study forms part of a wider investigation into the suitability of arc-wire based deposition techniques for the additive manufacture of titanium components.en_AU
dc.identifier.citationHoye, N., Li, H., Cuiuri, D., & Paradowska, A. M. (2013). Residual stresses in titanium aerospace components formed via additive manufacture. Paper presented at the 11th AINSE-ANBUG Neutron Scattering Symposium (AANSS), Sydney, 2 - 3 December 2013, (pp. 51)en_AU
dc.identifier.conferenceenddate3 December 2013en_AU
dc.identifier.conferencename11th AINSE-ANBUG Neutron Scattering Symposium (AANSS)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate2 December 2013en_AU
dc.identifier.pagination51en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10438en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineering (AINSE)en_AU
dc.subjectAerospace industryen_AU
dc.subjectANSTOen_AU
dc.subjectComputer-aided manufacturingen_AU
dc.subjectOPAL Reactoren_AU
dc.subjectMaterials testingen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectResidual stressesen_AU
dc.subjectStrain gagesen_AU
dc.titleResidual stresses in titanium aerospace components formed via additive manufactureen_AU
dc.typeConference Abstracten_AU
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