Measurement of residual stresses in titanium aerospace components formed via additive manufacturing

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dc.contributor.authorHoye, Nen_AU
dc.contributor.authorLi, HJen_AU
dc.contributor.authorCuiuri, Den_AU
dc.contributor.authorParadowska, AMen_AU
dc.date.accessioned2016-08-26T01:48:12Zen_AU
dc.date.available2016-08-26T01:48:12Zen_AU
dc.date.issued2014-02en_AU
dc.date.statistics2016-08-08en_AU
dc.description.abstractIn 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-6Al-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-6Al-4V. Microhardness measurements show a drop in hardness in the top region of the deposit, indicating a dependence on thermal cycling from sequential welds. © 2014, Trans Tech Publications.en_AU
dc.identifier.citationHoye, N., Li, H. J., Cuiuri, D., & Paradowska, A. M. (2014). Measurement of Residual Stresses in Titanium Aerospace Components Formed via Additive Manufacturing. Materials Science Forum, 777, 124-129. doi:10.4028/www.scientific.net/MSF.777.124en_AU
dc.identifier.govdoc7023en_AU
dc.identifier.issn1662-9752en_AU
dc.identifier.journaltitleMaterials Science Forumen_AU
dc.identifier.pagination124-129en_AU
dc.identifier.urihttp://dx.doi.org/10.4028/www.scientific.net/MSF.777.124en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7380en_AU
dc.identifier.volume777en_AU
dc.language.isoenen_AU
dc.publisherTrans Tech Publications Ltden_AU
dc.subjectResidual stressesen_AU
dc.subjectWeldingen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectAerospace industryen_AU
dc.subjectANSTOen_AU
dc.subjectMicrostructureen_AU
dc.titleMeasurement of residual stresses in titanium aerospace components formed via additive manufacturingen_AU
dc.typeJournal Articleen_AU
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