Joining copper to stainless steel by friction stir diffusion process

Detalhes bibliográficos
Autor(a) principal: Martins, Jorge Miguel Ribeiro
Data de Publicação: 2013
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/10723
Resumo: Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Engenharia Mecânica
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spelling Joining copper to stainless steel by friction stir diffusion processFriction stir weldingDiffusion processCopperStainless steelDissimilar jointMechanical resistanceDissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Engenharia MecânicaOne of the major trends in welding and joining technology is to join dissimilar materials taking advantage of individual materials properties. Among these, copper to stainless steel joining has significant industrial applications and importance where e.g. the highest electrical and thermal conductivities are required to engineering materials associated to good corrosion resistance. However, joining these materials is difficult due to their very different chemical composition and thermo-physical properties. Additionally, they easily form intermetallic phases that deteriorate the mechanical strength of the joint. Thus investigating the feasibility of applying alternative processing technologies is relevant. Solid state processes have been investigated for this application, namely friction stir welding. Recently, a variant has been exploited where local diffusion is the fundamental joining mechanism triggered by friction stir. The advantage of friction stir diffusion process is the minimal detrimental effect on both materials, preventing some critical identified problems. Since this process is not well developed, this thesis aimed to study friction stir diffusion process (FSDP) to join copper to stainless steel. Lap joints were produced varying processing parameters, namely, rotation and travel speeds and axial forging force. The effect of processing parameters on the width of effective joining was studied, as well the joints characterization for mechanical resistance properties and microstructural features at the interface. The thermo-mechanical conditions and time during the FSDP resulted in an interface with diffusion between both materials below 3 μm. The shear strength of the lap joints depends on the material thickness involved, but joining efficiencies up to 73.8 % were achieved.Faculdade de Ciências e TecnologiaMiranda, RosaSilva, PedroRUNMartins, Jorge Miguel Ribeiro2013-11-15T11:33:54Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/10723enginfo: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:RCAAP2024-03-11T03:44:37Zoai:run.unl.pt:10362/10723Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:19:40.952061Repositório 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 Joining copper to stainless steel by friction stir diffusion process
title Joining copper to stainless steel by friction stir diffusion process
spellingShingle Joining copper to stainless steel by friction stir diffusion process
Martins, Jorge Miguel Ribeiro
Friction stir welding
Diffusion process
Copper
Stainless steel
Dissimilar joint
Mechanical resistance
title_short Joining copper to stainless steel by friction stir diffusion process
title_full Joining copper to stainless steel by friction stir diffusion process
title_fullStr Joining copper to stainless steel by friction stir diffusion process
title_full_unstemmed Joining copper to stainless steel by friction stir diffusion process
title_sort Joining copper to stainless steel by friction stir diffusion process
author Martins, Jorge Miguel Ribeiro
author_facet Martins, Jorge Miguel Ribeiro
author_role author
dc.contributor.none.fl_str_mv Miranda, Rosa
Silva, Pedro
RUN
dc.contributor.author.fl_str_mv Martins, Jorge Miguel Ribeiro
dc.subject.por.fl_str_mv Friction stir welding
Diffusion process
Copper
Stainless steel
Dissimilar joint
Mechanical resistance
topic Friction stir welding
Diffusion process
Copper
Stainless steel
Dissimilar joint
Mechanical resistance
description Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Engenharia Mecânica
publishDate 2013
dc.date.none.fl_str_mv 2013-11-15T11:33:54Z
2013
2013-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/10723
url http://hdl.handle.net/10362/10723
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Faculdade de Ciências e Tecnologia
publisher.none.fl_str_mv Faculdade de Ciências e Tecnologia
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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