Publication:
Low-cycle fatigue behavior of friction stir-welded copper joints

dc.contributor.authorGhobadlou, Ali Hosseinzadeh
dc.contributor.authorSalahi, Salar
dc.contributor.authorRadi, Amin
dc.contributor.authorSajadifar, Seyed Vahid
dc.contributor.authorYapıcı, Güney Güven
dc.contributor.departmentMechanical Engineering
dc.contributor.ozuauthorYAPICI, Güney Güven
dc.contributor.ozugradstudentGhobadlou, Ali Hosseinzadeh
dc.contributor.ozugradstudentSalahi, Salar
dc.contributor.ozugradstudentRadi, Amin
dc.contributor.ozugradstudentSajadifar, Seyed Vahid
dc.date.accessioned2022-11-03T12:44:22Z
dc.date.available2022-11-03T12:44:22Z
dc.date.issued2021-11
dc.description.abstractInvestigation of the fatigue response of friction stir-welded (FSWed) joints is especially important in the design and manufacturing of components with exposure to cyclic loading. In this study, cyclic response of FSWed pure copper joints is investigated in the low-cycle fatigue regime. Microstructural characterizations revealed that FSW introduced a severely deformed microstructure in the nugget zone (NZ). Fatigue response was determined at a strain ratio of 0.1 by varying the total strain amplitude from 0.1 to 0.6%. Cyclic softening was observed for the low strain amplitude of 0.1%, whereas hardening was detected at higher strain amplitudes. The hysteresis loops demonstrated symmetricity along with noticeable linear behavior after the reversals. Typical fractures occurred in the heat affected zone (HAZ) rather than the NZ or the base metal due to grain coarsening of the HAZ. Improved cyclic properties of the NZ along with stable behavior up to 1000 cycles at a total strain amplitude of 0.3% were attributed to its fine and homogeneous microstructure. Moreover, fracture surface analysis demonstrated a ductile behavior represented by dimples in the sample strained at 0.1% in contrast with a brittle fracture surface of the sample fatigued at 0.5% strain amplitude.en_US
dc.description.sponsorshipOzyegin University
dc.identifier.doi10.1007/s11665-021-06034-2en_US
dc.identifier.endpage8651en_US
dc.identifier.issn1059-9495en_US
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85110829734
dc.identifier.startpage8643en_US
dc.identifier.urihttp://hdl.handle.net/10679/7948
dc.identifier.urihttps://doi.org/10.1007/s11665-021-06034-2
dc.identifier.volume30en_US
dc.identifier.wos000678113000002
dc.language.isoengen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Materials Engineering and Performance
dc.relation.publicationcategoryInternational Refereed Journal
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsCyclic responseen_US
dc.subject.keywordsFractureen_US
dc.subject.keywordsFriction stir weldingen_US
dc.subject.keywordsLow-cycle fatigueen_US
dc.subject.keywordsMechanical behavioren_US
dc.subject.keywordsPure copperen_US
dc.titleLow-cycle fatigue behavior of friction stir-welded copper jointsen_US
dc.typeArticleen_US
dspace.entity.typePublication
relation.isOrgUnitOfPublicationdaa77406-1417-4308-b110-2625bf3b3dd7
relation.isOrgUnitOfPublication.latestForDiscoverydaa77406-1417-4308-b110-2625bf3b3dd7

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