Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system

Detalhes bibliográficos
Autor(a) principal: Mendes,Marcio Andreato Batista
Data de Publicação: 2012
Outros Autores: Aliaga,Luis César Rodríguez, Kiminami,Claudio Shyinti, Oliveira,Marcelo Falcão de, Botta Filho,Walter José, Bolfarini,Claudemiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500004
Resumo: A combination of an extension of the topological instability "λ criterion" and the "average electronegativity" has been recently reported in the literature to predict compositions with high glass-forming ability (GFA). In the present work, both criteria have been applied to select the Ni61.0Nb36.0B3 alloy with a high glass-forming ability. Ingots were prepared by arc-melting and were used to produce ribbons processed by the melt-spinning technique further characterized by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The Ni61.0Nb36.0B3 alloy revealed a complete amorphization and supercooled liquid region ΔTx = 68 K. In addition, wedge-shaped samples were prepared using copper mold casting in order to determine the critical thickness for amorphous formation. Scanning electron microscopy (SEM) revealed that fully amorphous samples could be obtained, reaching up to ~800 µm in thickness.
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spelling Selection of compositions with high glass forming ability in the Ni-Nb-B alloy systemmetallic glassrapid solidification processingternary alloy systemsA combination of an extension of the topological instability "λ criterion" and the "average electronegativity" has been recently reported in the literature to predict compositions with high glass-forming ability (GFA). In the present work, both criteria have been applied to select the Ni61.0Nb36.0B3 alloy with a high glass-forming ability. Ingots were prepared by arc-melting and were used to produce ribbons processed by the melt-spinning technique further characterized by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The Ni61.0Nb36.0B3 alloy revealed a complete amorphization and supercooled liquid region ΔTx = 68 K. In addition, wedge-shaped samples were prepared using copper mold casting in order to determine the critical thickness for amorphous formation. Scanning electron microscopy (SEM) revealed that fully amorphous samples could be obtained, reaching up to ~800 µm in thickness.ABM, ABC, ABPol2012-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500004Materials Research v.15 n.5 2012reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392012005000090info:eu-repo/semantics/openAccessMendes,Marcio Andreato BatistaAliaga,Luis César RodríguezKiminami,Claudio ShyintiOliveira,Marcelo Falcão deBotta Filho,Walter JoséBolfarini,Claudemiroeng2012-09-18T00:00:00Zoai:scielo:S1516-14392012000500004Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2012-09-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
title Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
spellingShingle Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
Mendes,Marcio Andreato Batista
metallic glass
rapid solidification processing
ternary alloy systems
title_short Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
title_full Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
title_fullStr Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
title_full_unstemmed Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
title_sort Selection of compositions with high glass forming ability in the Ni-Nb-B alloy system
author Mendes,Marcio Andreato Batista
author_facet Mendes,Marcio Andreato Batista
Aliaga,Luis César Rodríguez
Kiminami,Claudio Shyinti
Oliveira,Marcelo Falcão de
Botta Filho,Walter José
Bolfarini,Claudemiro
author_role author
author2 Aliaga,Luis César Rodríguez
Kiminami,Claudio Shyinti
Oliveira,Marcelo Falcão de
Botta Filho,Walter José
Bolfarini,Claudemiro
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mendes,Marcio Andreato Batista
Aliaga,Luis César Rodríguez
Kiminami,Claudio Shyinti
Oliveira,Marcelo Falcão de
Botta Filho,Walter José
Bolfarini,Claudemiro
dc.subject.por.fl_str_mv metallic glass
rapid solidification processing
ternary alloy systems
topic metallic glass
rapid solidification processing
ternary alloy systems
description A combination of an extension of the topological instability "λ criterion" and the "average electronegativity" has been recently reported in the literature to predict compositions with high glass-forming ability (GFA). In the present work, both criteria have been applied to select the Ni61.0Nb36.0B3 alloy with a high glass-forming ability. Ingots were prepared by arc-melting and were used to produce ribbons processed by the melt-spinning technique further characterized by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The Ni61.0Nb36.0B3 alloy revealed a complete amorphization and supercooled liquid region ΔTx = 68 K. In addition, wedge-shaped samples were prepared using copper mold casting in order to determine the critical thickness for amorphous formation. Scanning electron microscopy (SEM) revealed that fully amorphous samples could be obtained, reaching up to ~800 µm in thickness.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392012005000090
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.15 n.5 2012
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212661615132672

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