Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)

Detalhes bibliográficos
Autor(a) principal: Gurau, Gheorghe
Data de Publicação: 2020
Outros Autores: Gurau, Carmela, Fernandes, Francisco Manuel Braz, Alexandru, Petrica, Sampath, Vedamanickam, Marin, Mihaela, Galbinasu, Bogdan Mihai
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/116009
Resumo: 47PCCDI/2018 MANUNET 3 PN3-P3-302 grant number 99-2019
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spelling Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)CompositesHSHPTNano multilayersNi-TiSPDMaterials Science(all)47PCCDI/2018 MANUNET 3 PN3-P3-302 grant number 99-2019It is generally accepted that severe plastic deformation (SPD) has the ability to produce ultrafinegrained (UFG) and nanocrystalline materials in bulk. Recent developments in high pressure torsion (HPT) processes have led to the production of bimetallic composites using copper, aluminum or magnesium alloys. This article outlines a new approach to fabricate multilayered Ni-Ti nanocomposites by a patented SPD technique, namely, high speed high pressure torsion (HSHPT). The multilayered composite discs consist of Ni-Ti alloys of different composition: a shape memory alloy (SMA) Ti-rich, whose Mf > RT, and an SMA Ni-rich, whose Af < RT. The composites were designed to have 2 to 32 layers of both alloys. The layers were arranged in different sequences to improve the shape recovery on both heating and cooling of nickel-titanium alloys. The manufacturing process of Ni-Ti multilayers is explained in this work. The evolution of the microstructure was traced using optical, scanning electron and transmission electron microscopes. The effectiveness of the bonding of the multilayered composites was investigated. The shape memory characteristics and the martensitic transition of the nickel-titanium nanocomposites were studied by differential scanning calorimetry (DSC). This method opens up new possibilities for designing various layered metal-matrix composites achieving the best combination of shape memory, deformability and tensile strength.DCM - Departamento de Ciência dos MateriaisCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)RUNGurau, GheorgheGurau, CarmelaFernandes, Francisco Manuel BrazAlexandru, PetricaSampath, VedamanickamMarin, MihaelaGalbinasu, Bogdan Mihai2021-04-22T22:46:59Z2020-12-042020-12-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article9application/pdfhttp://hdl.handle.net/10362/116009eng2075-4701PURE: 29048391https://doi.org/10.3390/met10121629info: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:RCAAP2024-03-11T04:58:33Zoai:run.unl.pt:10362/116009Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:42:54.624258Repositório 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 Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
title Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
spellingShingle Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
Gurau, Gheorghe
Composites
HSHPT
Nano multilayers
Ni-Ti
SPD
Materials Science(all)
title_short Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
title_full Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
title_fullStr Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
title_full_unstemmed Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
title_sort Structural characteristics of multilayered ni-ti nanocomposite fabricated by high speed high pressure torsion (Hshpt)
author Gurau, Gheorghe
author_facet Gurau, Gheorghe
Gurau, Carmela
Fernandes, Francisco Manuel Braz
Alexandru, Petrica
Sampath, Vedamanickam
Marin, Mihaela
Galbinasu, Bogdan Mihai
author_role author
author2 Gurau, Carmela
Fernandes, Francisco Manuel Braz
Alexandru, Petrica
Sampath, Vedamanickam
Marin, Mihaela
Galbinasu, Bogdan Mihai
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv DCM - Departamento de Ciência dos Materiais
CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
RUN
dc.contributor.author.fl_str_mv Gurau, Gheorghe
Gurau, Carmela
Fernandes, Francisco Manuel Braz
Alexandru, Petrica
Sampath, Vedamanickam
Marin, Mihaela
Galbinasu, Bogdan Mihai
dc.subject.por.fl_str_mv Composites
HSHPT
Nano multilayers
Ni-Ti
SPD
Materials Science(all)
topic Composites
HSHPT
Nano multilayers
Ni-Ti
SPD
Materials Science(all)
description 47PCCDI/2018 MANUNET 3 PN3-P3-302 grant number 99-2019
publishDate 2020
dc.date.none.fl_str_mv 2020-12-04
2020-12-04T00:00:00Z
2021-04-22T22:46:59Z
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/10362/116009
url http://hdl.handle.net/10362/116009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2075-4701
PURE: 29048391
https://doi.org/10.3390/met10121629
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 9
application/pdf
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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