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Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds

2018-08Journal article Open access
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dc.contributor.authorCarvalho, G.H.S.F.L.
dc.contributor.authorGalvão, I.
dc.contributor.authorMendes, R.
dc.contributor.authorLeal, Rui
dc.contributor.authorLoureiro, A.
dc.date.accessioned2025-06-03T14:22:02Z
dc.date.available2025-06-03T14:22:02Z
dc.date.issued2018-08
dc.description.abstractThe formation of intermetallic structures at the interface of carbon steel to 6082 aluminium alloy explosive welds and their influence on the weldability of these two materials were studied. The morphology, the microstructure, the chemical and phase compositions of the welds were characterised by several types of microscopy techniques. The interface characterisation proved that explosive mixtures with a lower detonation velocity were revealed as being more suitable for achieving consistent welds since jet entrapment was prevented and continuous molten layers were not formed at the weld interface. It was also found that the physical properties of the intermetallic phases generated at the weld interface have a strong influence on the weldability of steel-to-aluminium explosive welds. Specifically, it was shown that the formation of aluminium-rich intermetallic phases at the weld interface increases the solidification time of the interfacial molten material, decreasing the weldability of these two materials. The formation of these intermetallic compounds should be avoided by reducing the interaction between the flyer and the baseplate as well as by avoiding excessive molten layers.por
dc.description.sponsorshipThis research is sponsored by FEDER funds through the programme COMPETE - Programa Operacional Factores de Competitividade - and by national funds through FCT - Fundação Portuguesa para a Ciência e a Tecnologia, under the project UID/EMS/00285/2013. The authors also acknowledge the financial support of the IPL - Instituto Politécnico de Lisboa, under the project IPL/2017/EWDMat/ISEL. The first author, G.H.S.F.L. Carvalho, is supported by CNPq - Conselho Nacional Brasileiro de Desenvolvimento Científico e Tecnológico.
dc.identifier.citationG.H.S.F.L. Carvalho, I. Galvão, R. Mendes, R.M. Leal, A. Loureiro, Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds, Materials Characterization, Volume 142, 2018, Pages 432-442, ISSN 1044-5803, https://doi.org/10.1016/j.matchar.2018.06.005.
dc.identifier.doi10.1016/j.matchar.2018.06.005
dc.identifier.issn1044-5803
dc.identifier.urihttp://hdl.handle.net/10400.8/13084
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier BV
dc.relationUID/EMS/00285/2013
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S1044580318311641
dc.relation.ispartofMaterials Characterization
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectIntermetallic phases
dc.subjectInterfacial characterisation
dc.subjectExplosive welding
dc.subjectWeldability
dc.subjectteel-to‑aluminium welding
dc.titleFormation of intermetallic structures at the interface of steel-to-aluminium explosive weldseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage442
oaire.citation.startPage432
oaire.citation.titleMaterials Characterization
oaire.citation.volume142
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLeal
person.givenNameRui
person.identifier.ciencia-id001C-1230-7699
person.identifier.orcid0000-0001-6416-0191
person.identifier.ridF-4418-2017
person.identifier.scopus-author-id18434853300
relation.isAuthorOfPublication46bc598a-4575-4726-aedf-11a2a2cf771e
relation.isAuthorOfPublication.latestForDiscovery46bc598a-4575-4726-aedf-11a2a2cf771e

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