Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10316/100681 https://doi.org/10.3390/met11040655 |
Resumo: | This paper aims to investigate the diffusion bonding of Ti6Al4V to Al2 O3 . The potential of the use of reactive nanolayered thin films will also be investigated. For this purpose, Ni/Ti multilayer thin films with a 50 nm modulation period were deposited by magnetron sputtering onto the base materials. Diffusion bonding experiments were performed at 800◦ C, under 50 MPa and a dwell time of 60 min, with and without interlayers. Microstructural characterization of the interface was conducted through scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS). The joints experiments without interlayer were unsuccessful. The interface is characterized by the presence of a crack close to the Al2 O3 base material. The results revealed that the Ni/Ti reactive multilayers improved the diffusion bonding process, allowing for sound joints to be obtained at 800◦ C for 60 min. The interface produced is characterized by a thin thickness and is mainly composed of NiTi and NiTi2 reaction layers. Mechanical characterization of the joint was assessed by hardness and reduced Young’s modulus distribution maps that enhance the different phases composing the interface. The hardness maps showed that the interface exhibits a hardness distribution similar to the Al2 O3, which can be advantageous to the mechanical behavior of the joints. |
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Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayersmultilayersdiffusion bondingTi6Al4V alloysAl2O3microstructureInterfaces for Unmanned Search VehiclessputteringThis paper aims to investigate the diffusion bonding of Ti6Al4V to Al2 O3 . The potential of the use of reactive nanolayered thin films will also be investigated. For this purpose, Ni/Ti multilayer thin films with a 50 nm modulation period were deposited by magnetron sputtering onto the base materials. Diffusion bonding experiments were performed at 800◦ C, under 50 MPa and a dwell time of 60 min, with and without interlayers. Microstructural characterization of the interface was conducted through scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS). The joints experiments without interlayer were unsuccessful. The interface is characterized by the presence of a crack close to the Al2 O3 base material. The results revealed that the Ni/Ti reactive multilayers improved the diffusion bonding process, allowing for sound joints to be obtained at 800◦ C for 60 min. The interface produced is characterized by a thin thickness and is mainly composed of NiTi and NiTi2 reaction layers. Mechanical characterization of the joint was assessed by hardness and reduced Young’s modulus distribution maps that enhance the different phases composing the interface. The hardness maps showed that the interface exhibits a hardness distribution similar to the Al2 O3, which can be advantageous to the mechanical behavior of the joints.2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/100681http://hdl.handle.net/10316/100681https://doi.org/10.3390/met11040655eng2075-4701Silva, MarcioniloRamos, Ana S.Vieira, M. TeresaSimões, Sóniainfo: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:RCAAP2022-07-08T20:38:32Zoai:estudogeral.uc.pt:10316/100681Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:18:00.998832Repositório 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 |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
title |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
spellingShingle |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers Silva, Marcionilo multilayers diffusion bonding Ti6Al4V alloys Al2O3 microstructure Interfaces for Unmanned Search Vehicles sputtering |
title_short |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
title_full |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
title_fullStr |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
title_full_unstemmed |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
title_sort |
Diffusion Bonding of Ti6Al4V to Al2O3 Using Ni/Ti Reactive Multilayers |
author |
Silva, Marcionilo |
author_facet |
Silva, Marcionilo Ramos, Ana S. Vieira, M. Teresa Simões, Sónia |
author_role |
author |
author2 |
Ramos, Ana S. Vieira, M. Teresa Simões, Sónia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva, Marcionilo Ramos, Ana S. Vieira, M. Teresa Simões, Sónia |
dc.subject.por.fl_str_mv |
multilayers diffusion bonding Ti6Al4V alloys Al2O3 microstructure Interfaces for Unmanned Search Vehicles sputtering |
topic |
multilayers diffusion bonding Ti6Al4V alloys Al2O3 microstructure Interfaces for Unmanned Search Vehicles sputtering |
description |
This paper aims to investigate the diffusion bonding of Ti6Al4V to Al2 O3 . The potential of the use of reactive nanolayered thin films will also be investigated. For this purpose, Ni/Ti multilayer thin films with a 50 nm modulation period were deposited by magnetron sputtering onto the base materials. Diffusion bonding experiments were performed at 800◦ C, under 50 MPa and a dwell time of 60 min, with and without interlayers. Microstructural characterization of the interface was conducted through scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS). The joints experiments without interlayer were unsuccessful. The interface is characterized by the presence of a crack close to the Al2 O3 base material. The results revealed that the Ni/Ti reactive multilayers improved the diffusion bonding process, allowing for sound joints to be obtained at 800◦ C for 60 min. The interface produced is characterized by a thin thickness and is mainly composed of NiTi and NiTi2 reaction layers. Mechanical characterization of the joint was assessed by hardness and reduced Young’s modulus distribution maps that enhance the different phases composing the interface. The hardness maps showed that the interface exhibits a hardness distribution similar to the Al2 O3, which can be advantageous to the mechanical behavior of the joints. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
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/10316/100681 http://hdl.handle.net/10316/100681 https://doi.org/10.3390/met11040655 |
url |
http://hdl.handle.net/10316/100681 https://doi.org/10.3390/met11040655 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2075-4701 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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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1799134075597881344 |