Investigation of microstructure within metal welds by energy resolved neutron imaging

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dc.contributor.authorTremsin, ASen_AU
dc.contributor.authorKockelmann, Wen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorZhang, SYen_AU
dc.contributor.authorKorsunsky, AMen_AU
dc.contributor.authorShinohara, Ten_AU
dc.contributor.authorFeller, WBen_AU
dc.contributor.authorLehmann, EHen_AU
dc.date.accessioned2021-02-16T04:30:20Zen_AU
dc.date.available2021-02-16T04:30:20Zen_AU
dc.date.issued2016-01-01en_AU
dc.date.statistics2021-02-15en_AU
dc.description.abstractThe recent development of bright pulsed neutron sources and high resolution neutron counting detectors enables simultaneous acquisition of a neutron transmission spectrum for each pixel of the image. These spectra can be used to reconstruct microstructure parameters within welds, such as strain, texture and phase composition through Bragg edge analysis, and in some cases elemental composition through resonance absorption analysis. In this paper we demonstrate the potential of energy-resolved neutron imaging to study the microstructures of two steel welds, where the spatial distribution of residual strain within the welds, as well as some information on the texture, are obtained with sub-mm spatial resolution. A friction stir weld of two steel plates and a conventional weld of two steel pipes were studied at pulsed neutron facilities, where a Δλ/λ resolution as low as 0.2% can be attained over a wide range of neutron wavelengths ranging from 0.5 Å to 8 Å. Creative Commons Attribution 3.0 licence © Copyright 2021 IOP Publishingen_AU
dc.identifier.articlenumber012040en_AU
dc.identifier.citationTremsin, A. S., Kockelmann, W., Paradowska, A. M., Zhang, S-Y., Korsunsky, A. M., Shinohara, T., Feller, W. B., & Lehmann, E. H. (2016). Investigation of microstructure within metal welds by energy resolved neutron imaging. Paper presented to the VI European Conference on Neutron Scattering (ECNS2015), 30 August to 4 September 2015, Zaragoza, Spain. In Journal of Physics: Conference Series, Volume 746, 012040. doi:10.1088/1742-6596/746/1/012040en_AU
dc.identifier.conferenceenddate4 September 2015en_AU
dc.identifier.conferencenameVI European Conference on Neutron Scattering (ECNS2015)en_AU
dc.identifier.conferenceplaceZaragoza, Spainen_AU
dc.identifier.conferencestartdate30 August 2015en_AU
dc.identifier.issn1742-6596en_AU
dc.identifier.journaltitleJournal of Physics: Conference Seriesen_AU
dc.identifier.urihttps://doi.org/10.1088/1742-6596/746/1/012040en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10420en_AU
dc.identifier.volume746en_AU
dc.language.isoenen_AU
dc.publisherIOP Publishingen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMicrostructureen_AU
dc.subjectWelded jointsen_AU
dc.subjectSteelsen_AU
dc.subjectPipesen_AU
dc.subjectBragg reflectionen_AU
dc.titleInvestigation of microstructure within metal welds by energy resolved neutron imagingen_AU
dc.typeConference Paperen_AU
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