Residual stress measurements in a ferritic steel/In625 superalloy dissimilar metal weldment using neutron diffraction and deep-hole drilling

dc.contributor.authorSkouras, Aen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorPeel, MJen_AU
dc.contributor.authorFlewitt, PEJen_AU
dc.contributor.authorPavier, MJen_AU
dc.date.accessioned2013-11-08T00:53:49Zen_AU
dc.date.available2013-11-08T00:53:49Zen_AU
dc.date.issued2013-01-01en_AU
dc.date.statistics2013-11-08en_AU
dc.description.abstractThis paper reports the use of non-invasive and semi-invasive techniques to measure the residual stresses in a large dissimilar weldment. This took the form of a butt weld between two sections of a P92 steel pipe, joined using an In625 welding consumable. Residual stress measurements have been carried out on the 30 mm thick welded pipe using the deep-hole drilling technique to characterise the through wall section residual stress distribution for the weld metal, HAZ and parent material. In addition, neutron diffraction measurements have been carried out within the weld zone. Diffraction patterns presented a high intensity and sharp peaks for the base P92 steel material. However measurements in the weld superalloy material were proven problematic as very weak diffraction patterns were observed. A thorough examination of the weld material suggested that the likely cause of this phenomenon was texture in the weld material created during the solidification phase of the welding procedure. This paper discusses the challenges in the execution and interpretation of the neutron diffraction results and demonstrates that realistic measurements of residual stresses can be achieved, in complex dissimilar metal weldments. © 2013, Elsevier Ltd.en_AU
dc.identifier.citationSkouras, A., Paradowska, A., Peel, M. J., Flewitt, P. E. J., & Pavier, M. J. (2013). Residual stress measurements in a ferritic steel/In625 superalloy dissimilar metal weldment using neutron diffraction and deep-hole drilling. International Journal of Pressure Vessels and Piping, 101, 143-153. doi:10.1016/j.ijpvp.2012.11.002en_AU
dc.identifier.govdoc5109en_AU
dc.identifier.issn1879-3541en_AU
dc.identifier.journaltitleInternational Journal of Pressure Vessels and Pipingen_AU
dc.identifier.pagination143-153en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijpvp.2012.11.002en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4904en_AU
dc.identifier.volume101en_AU
dc.language.isoenen_AU
dc.publisherElsevier Science Ltd.en_AU
dc.subjectNeutron diffractionen_AU
dc.subjectResidual stressesen_AU
dc.subjectDrillingen_AU
dc.subjectTextureen_AU
dc.subjectWeldingen_AU
dc.subjectHeat resisting alloysen_AU
dc.subjectTextureen_AU
dc.titleResidual stress measurements in a ferritic steel/In625 superalloy dissimilar metal weldment using neutron diffraction and deep-hole drillingen_AU
dc.typeJournal Articleen_AU
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