Cracking susceptibility after post-weld heat treatment in haynes 282 nickel based superalloy

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dc.contributor.authorOsoba, L.O.
dc.contributor.authorKhan, A.K.
dc.contributor.authorAdeosun, S.O.
dc.date.accessioned2020-01-24T10:27:38Z
dc.date.available2020-01-24T10:27:38Z
dc.date.issued2013
dc.descriptionStaff publicationsen_US
dc.description.abstractThis paper presents a study of the standard post-weld heat treatment (PWHT) behaviour of autogenous laser welded γ’ age-hardenable precipitation strengthened nickel based superalloy Haynes 282 (HY 282). The study involves a careful and detailed microstructural characterisation as well as an analysis of the weld cracking susceptibility during welding and Gleeble thermo-mechanical physical simulation. Various factors that could influence post-weld cracking in superalloys weld were experimentally examined. Our microstructural examination of the as-solution heat treated (SHTed) material and the thermo-mechanically refined grain material shows that intergranular heat affected zone (HAZ) cracking is observable in only the as-welded SHTed material. There was no indication of post-weld heat treatment cracking in all welded materials. Our conclusion, in this study, is that the chemistry of superalloy HY 282 which aids the preclusion/ formation of deleterious solidification microconstituents during welding as well as its relatively slow aging kinetics enhances its resistance to PWHT cracking.en_US
dc.identifier.citationOsoba, L.O., Khan, A.K., Adeosun, S.O., (2013). Cracking susceptibility after post-weld heat treatment in haynes 282 nickel based superalloy, ACTA Metallurgica Sinica, 26(6):747—753en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/7509
dc.language.isoenen_US
dc.publisherACTA Metallurgica Sinicaen_US
dc.relation.ispartofseriesACTA Metallurgica Sinica;Vol.26(6)
dc.subjectCrackingen_US
dc.subjectMicrostructure analysisen_US
dc.subjectNickel based superalloyen_US
dc.subjectHeat treatmenten_US
dc.subjectResearch Subject Categories::TECHNOLOGYen_US
dc.titleCracking susceptibility after post-weld heat treatment in haynes 282 nickel based superalloyen_US
dc.typeArticleen_US
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