Diffraction line profile analysis of 3D wedge samples of Ti-6Al-4V fabricated using four different additive manufacturing processes

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dc.contributor.authorCottam, Ren_AU
dc.contributor.authorPalanisamy, Sen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorJarvis, Ten_AU
dc.contributor.authorHenry, Cen_AU
dc.contributor.authorCuiuri, Den_AU
dc.contributor.authorBalogh, Len_AU
dc.contributor.authorAbdul Rahman Rashid, Ren_AU
dc.date.accessioned2021-03-10T23:40:23Zen_AU
dc.date.available2021-03-10T23:40:23Zen_AU
dc.date.issued2019-01-09en_AU
dc.date.statistics2021-03-09en_AU
dc.description.abstractWedge-shaped samples were manufactured by four different Additive Manufacturing (AM) processes, namely selective laser melting (SLM), electron beam melting (EBM), direct metal deposition (DMD), and wire and arc additive manufacturing (WAAM), using Ti-6Al-4V as the feed material. A high-resolution powder diffractometer was used to measure the diffraction patterns of the samples whilst rotated about two axes to collect detected neutrons from all possible lattice planes. The diffraction pattern of a LaB6 standard powder sample was also measured to characterize the instrumental broadening and peak shapes necessary for the Diffraction Line Profile Analysis. The line profile analysis was conducted using the extended Convolution Multiple Whole Profile (eCMWP) procedure. Once analyzed, it was found that there was significant variation in the dislocation densities between the SLMed and the EBMed samples, although having a similar manufacturing technique. While the samples fabricated via WAAM and the DMD processes showed almost similar dislocation densities, they were, however, different in comparison to the other two AM processes, as expected. The hexagonal (HCP) crystal structure of the predominant α-Ti phase allowed a breakdown of the percentage of the Burgers’ vectors possible for this crystal structure. All four techniques exhibited different combinations of the three possible Burgers’ vectors, and these differences were attributed to the variation in the cooling rates experienced by the parts fabricated using these AM processes. © This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_AU
dc.identifier.citationCottam, R., Palanisamy, S., Avdeev, M., Jarvis, T., Henry, C., Cuiuri, D., Balogh, L., & Abdul Rahman Rashid, R. (2019). Diffraction line profile analysis of 3D wedge samples of Ti-6Al-4V fabricated using four different additive manufacturing processes. Metals, 9(1), 60. doi:10.3390/met9010060en_AU
dc.identifier.issn2075-4701en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleMetalsen_AU
dc.identifier.pagination60en_AU
dc.identifier.urihttps://doi.org/10.3390/met9010060en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10520en_AU
dc.identifier.volume9en_AU
dc.language.isoenen_AU
dc.publisherMDPIen_AU
dc.subjectElectron beam meltingen_AU
dc.subjectDiffractionen_AU
dc.subjectCrystal latticesen_AU
dc.subjectFabricationen_AU
dc.subjectBurgers vectoren_AU
dc.subjectCrystal structureen_AU
dc.subjectCoolingen_AU
dc.titleDiffraction line profile analysis of 3D wedge samples of Ti-6Al-4V fabricated using four different additive manufacturing processesen_AU
dc.typeJournal Articleen_AU
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