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Effect of explosive mixture on quality of explosive welds of copper to aluminium

2016-04Journal article Restricted access
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dc.contributor.authorLoureiro, A.
dc.contributor.authorMendes, R.
dc.contributor.authorRibeiro, J.B.
dc.contributor.authorLeal, Rui
dc.contributor.authorGalvão, I.
dc.date.accessioned2025-06-11T14:34:00Z
dc.date.available2025-06-11T14:34:00Z
dc.date.issued2016-04
dc.description.abstractThe aim of this research is to investigate the influence of explosive ratio and type of sensitizer on the quality of explosive welds between copper and aluminium alloy plates. The welds were performed on a partially overlapping joint configuration using an emulsion explosive (EE) with two different sensitizers, hollow glass microspheres (HGMS) and expanded polystyrene spheres (EPS). Welds with an improved surface were achieved by using the HGMS sensitizer. A higher wave amplitude was registered in welds produced with the EPS sensitizer. In turn, the dimension of the molten pockets was influenced by the explosive ratio, increasing in size with increases in the values of this parameter. The intermetallic content of these zones varied according to the sensitizer type.Unlike the CuAl2 phase, the Cu-richer phases CuAl and Cu9Al4were only identified inwelds performed using the EPS sensitizer. An increase in hardness was observed at the interface of all welds, which resulted from both the presence of intermetallic phases and the plastic deformation of the materials promoted by the impact. This effect was most evident on the aluminium alloy side. All the welds had a greater strength than copper, i.e. the weakest material of the joint.por
dc.identifier.citationA. Loureiro, R. Mendes, J.B. Ribeiro, R.M. Leal, I. Galvão, Effect of explosive mixture on quality of explosive welds of copper to aluminium, Materials & Design, Volume 95, 2016, Pages 256-267, ISSN 0264-1275, https://doi.org/10.1016/j.matdes.2016.01.116
dc.identifier.doi10.1016/j.matdes.2016.01.116
dc.identifier.issn0264-1275
dc.identifier.urihttp://hdl.handle.net/10400.8/13199
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier BV
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/abs/pii/S0264127516301174
dc.relation.ispartofMaterials & Design
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectExplosive welding
dc.subjectExplosive ratio
dc.subjectExplosive sensitizers
dc.subjectWeld morphology
dc.subjectIntermetallic phases
dc.subjectTensile-shear strength
dc.titleEffect of explosive mixture on quality of explosive welds of copper to aluminiumeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage267
oaire.citation.startPage256
oaire.citation.titleMaterials & Design
oaire.citation.volume95
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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