The effect of microstructure and welding-induced plasticity on the strength of Ni–Mo–Cr alloy welds

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dc.contributor.authorDanon, AEen_AU
dc.contributor.authorMuránsky, Oen_AU
dc.contributor.authorZhu, HLen_AU
dc.contributor.authorWei, Ten_AU
dc.contributor.authorFlores-Johnson, EAen_AU
dc.contributor.authorLi, ZJen_AU
dc.contributor.authorKruzic, JJen_AU
dc.date.accessioned2023-01-27T01:07:08Zen_AU
dc.date.available2023-01-27T01:07:08Zen_AU
dc.date.issued2021-06en_AU
dc.date.statistics2023-01-12en_AU
dc.description.abstractThe mechanical performance of a Ni–Mo–Cr (GH3535) alloy weldment, produced using a matching filler metal, was assessed and compared to the surrounding parent metal. Ambient-temperature mechanical characterisation included hardness testing, small punch testing and uniaxial tensile testing, while a crystal plasticity finite element model was used to assess the impact of crystallographic texture on the mechanical properties. Despite the similar chemical composition, the weld metal exhibited superior strength and ductility to that of the parent metal. The higher strength was primarily attributed to the high dislocation density in the weld metal imbued by the welding-induced thermo-mechanical loading. In contrast, the ductility difference was attributed to M6C carbide stringers in the parent metal that initiated fracture at lower strains when compared to the weld metal, with the latter containing finer, well-dispersed M6C carbides. © 2021 Acta Materialia Inc. Published by Elsevier B.V.en_AU
dc.description.sponsorshipThis research was funded by ANSTO's internal research funding and supported by the AINSE Honours Scholarship Program.en_AU
dc.identifier.citationDanon, A. E., Muránsky, O., Zhu, H., Wei, T., Flores-Johnson, E. A., Li, Z. J., & Kruzic, J. J. (2021). The effect of microstructure and welding-induced plasticity on the strength of Ni–Mo–Cr alloy welds. Materialia, 17, 101126. doi:10.1016/j.mtla.2021.101126en_AU
dc.identifier.issn2589-1529en_AU
dc.identifier.journaltitleMaterialiaen_AU
dc.identifier.pagination101126en_AU
dc.identifier.urihttps://doi.org/10.1016/j.mtla.2021.101126en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14541en_AU
dc.identifier.volume6en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMicrostructureen_AU
dc.subjectWeldingen_AU
dc.subjectPlasticityen_AU
dc.subjectAlloysen_AU
dc.subjectMechanical propertiesen_AU
dc.subjectFinite element methoden_AU
dc.titleThe effect of microstructure and welding-induced plasticity on the strength of Ni–Mo–Cr alloy weldsen_AU
dc.typeJournal Articleen_AU
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