Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/9104 |
Resumo: | The 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. |
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Formation of intermetallic structures at the interface of steel-to-aluminium explosive weldsIntermetallic phasesExplosive weldingWeldabilitySteel-to aluminium weldingFases intermetálicasCaracterização interfacialThe 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.ElsevierRCIPLCarvalho, GustavoGalvão, IvanMendes, R.Leal, RuiLoureiro, A.2018-11-28T14:57:46Z2018-082018-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/9104engCARVALHO, G. H. S. F. L; [et al] – Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds. Materials Characterization. ISSN 1044-5803. Vol. 142 (2018), pp. 432-4421044-5803https://doi.org/10.1016/j.matchar.2018.06.005metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:57:24Zoai:repositorio.ipl.pt:10400.21/9104Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:17:44.875738Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
title |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
spellingShingle |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds Carvalho, Gustavo Intermetallic phases Explosive welding Weldability Steel-to aluminium welding Fases intermetálicas Caracterização interfacial |
title_short |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
title_full |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
title_fullStr |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
title_full_unstemmed |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
title_sort |
Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds |
author |
Carvalho, Gustavo |
author_facet |
Carvalho, Gustavo Galvão, Ivan Mendes, R. Leal, Rui Loureiro, A. |
author_role |
author |
author2 |
Galvão, Ivan Mendes, R. Leal, Rui Loureiro, A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Carvalho, Gustavo Galvão, Ivan Mendes, R. Leal, Rui Loureiro, A. |
dc.subject.por.fl_str_mv |
Intermetallic phases Explosive welding Weldability Steel-to aluminium welding Fases intermetálicas Caracterização interfacial |
topic |
Intermetallic phases Explosive welding Weldability Steel-to aluminium welding Fases intermetálicas Caracterização interfacial |
description |
The 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. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-28T14:57:46Z 2018-08 2018-08-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/9104 |
url |
http://hdl.handle.net/10400.21/9104 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
CARVALHO, G. H. S. F. L; [et al] – Formation of intermetallic structures at the interface of steel-to-aluminium explosive welds. Materials Characterization. ISSN 1044-5803. Vol. 142 (2018), pp. 432-442 1044-5803 https://doi.org/10.1016/j.matchar.2018.06.005 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799133440838205440 |