Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System

Detalhes bibliográficos
Autor(a) principal: Lima-Kühn,Belmira Benedita de
Data de Publicação: 2016
Outros Autores: Silva,Antonio Augusto Araujo Pinto da, Suzuki,Paulo Atsushi, Coelho,Gilberto Carvalho, Nunes,Carlos Angelo
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=S1516-14392016000501122
Resumo: Alloys containing Me-Si-B (Me - Refractory Metal) are of great interest for high temperature structural applications and accurate knowledge of its low order systems (binaries and ternaries) is important to predict the phase relations in the multicomponent alloys. Recent reevaluations of binaries containing Me-Si found out that the accuracy of the description of this type of systems could be improved. Knowing this, a reevaluation of the invariant reactions in the V-Si system via microstructural characterization of as-cast alloys is presented. Alloys of key compositions were prepared by arc melting pure V (min. 99.75%) and Si (min. 99.998%) and characterized via scanning electron microscopy (SEM) using back-scattered electron (BSE) mode, energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The results of this study confirmed the solid phases, the nature of the invariant reactions and determined new compositions for the liquid participating in certain invariant reactions.
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spelling Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si SystemV-Si systemphase diagramssilicidessolidificationAlloys containing Me-Si-B (Me - Refractory Metal) are of great interest for high temperature structural applications and accurate knowledge of its low order systems (binaries and ternaries) is important to predict the phase relations in the multicomponent alloys. Recent reevaluations of binaries containing Me-Si found out that the accuracy of the description of this type of systems could be improved. Knowing this, a reevaluation of the invariant reactions in the V-Si system via microstructural characterization of as-cast alloys is presented. Alloys of key compositions were prepared by arc melting pure V (min. 99.75%) and Si (min. 99.998%) and characterized via scanning electron microscopy (SEM) using back-scattered electron (BSE) mode, energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The results of this study confirmed the solid phases, the nature of the invariant reactions and determined new compositions for the liquid participating in certain invariant reactions.ABM, ABC, ABPol2016-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501122Materials Research v.19 n.5 2016reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-MR-2016-0001info:eu-repo/semantics/openAccessLima-Kühn,Belmira Benedita deSilva,Antonio Augusto Araujo Pinto daSuzuki,Paulo AtsushiCoelho,Gilberto CarvalhoNunes,Carlos Angeloeng2016-09-27T00:00:00Zoai:scielo:S1516-14392016000501122Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2016-09-27T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
title Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
spellingShingle Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
Lima-Kühn,Belmira Benedita de
V-Si system
phase diagrams
silicides
solidification
title_short Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
title_full Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
title_fullStr Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
title_full_unstemmed Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
title_sort Microstructural Characterization of As-Cast V-Si Alloys and Reevaluation of the Invariant Reactions Involving the Liquid Phase of the V-Si System
author Lima-Kühn,Belmira Benedita de
author_facet Lima-Kühn,Belmira Benedita de
Silva,Antonio Augusto Araujo Pinto da
Suzuki,Paulo Atsushi
Coelho,Gilberto Carvalho
Nunes,Carlos Angelo
author_role author
author2 Silva,Antonio Augusto Araujo Pinto da
Suzuki,Paulo Atsushi
Coelho,Gilberto Carvalho
Nunes,Carlos Angelo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lima-Kühn,Belmira Benedita de
Silva,Antonio Augusto Araujo Pinto da
Suzuki,Paulo Atsushi
Coelho,Gilberto Carvalho
Nunes,Carlos Angelo
dc.subject.por.fl_str_mv V-Si system
phase diagrams
silicides
solidification
topic V-Si system
phase diagrams
silicides
solidification
description Alloys containing Me-Si-B (Me - Refractory Metal) are of great interest for high temperature structural applications and accurate knowledge of its low order systems (binaries and ternaries) is important to predict the phase relations in the multicomponent alloys. Recent reevaluations of binaries containing Me-Si found out that the accuracy of the description of this type of systems could be improved. Knowing this, a reevaluation of the invariant reactions in the V-Si system via microstructural characterization of as-cast alloys is presented. Alloys of key compositions were prepared by arc melting pure V (min. 99.75%) and Si (min. 99.998%) and characterized via scanning electron microscopy (SEM) using back-scattered electron (BSE) mode, energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The results of this study confirmed the solid phases, the nature of the invariant reactions and determined new compositions for the liquid participating in certain invariant reactions.
publishDate 2016
dc.date.none.fl_str_mv 2016-10-01
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=S1516-14392016000501122
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501122
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-MR-2016-0001
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.19 n.5 2016
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
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