Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys

Detalhes bibliográficos
Autor(a) principal: Monteiro,Maurício de Jesus
Data de Publicação: 1999
Outros Autores: Assunção,Fernando Rizzo, Chaoliu,Zeng
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=S1516-14391999000300011
Resumo: The oxidation of NiAl, NiAl-20at.%Fe and NiAl-30at.%Fe at 1000-1100 °C in air has been studied. Pure NiAl shows excellent oxidation resistance due to the formation of an Al2O3 layer. NiAl-20Fe also shows good oxidation resistance due to the formation of an Al2O3 scale on a <FONT FACE="Symbol">b</font>-phase substrate. Moreover, some nodules consisting of mixed oxides of Fe and Ni grow over the ductile <FONT FACE="Symbol">g</font>-phase surface incorporated to the <FONT FACE="Symbol">b</font>-phase substrate. NiAl-30Fe alloy undergoes a much faster oxidation due to the formation of a non-protective Fe and Ni-rich scale, which is extremely susceptible to spallation. The addition of Fe to NiAl is detrimental to its oxidation resistance.
id ABMABCABPOL-1_103b12e7258a129a19ad68b1d05a65b1
oai_identifier_str oai:scielo:S1516-14391999000300011
network_acronym_str ABMABCABPOL-1
network_name_str Materials research (São Carlos. Online)
repository_id_str
spelling Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloysintermetallic compoundsNiAlFeoxidationThe oxidation of NiAl, NiAl-20at.%Fe and NiAl-30at.%Fe at 1000-1100 °C in air has been studied. Pure NiAl shows excellent oxidation resistance due to the formation of an Al2O3 layer. NiAl-20Fe also shows good oxidation resistance due to the formation of an Al2O3 scale on a <FONT FACE="Symbol">b</font>-phase substrate. Moreover, some nodules consisting of mixed oxides of Fe and Ni grow over the ductile <FONT FACE="Symbol">g</font>-phase surface incorporated to the <FONT FACE="Symbol">b</font>-phase substrate. NiAl-30Fe alloy undergoes a much faster oxidation due to the formation of a non-protective Fe and Ni-rich scale, which is extremely susceptible to spallation. The addition of Fe to NiAl is detrimental to its oxidation resistance.ABM, ABC, ABPol1999-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14391999000300011Materials Research v.2 n.3 1999reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14391999000300011info:eu-repo/semantics/openAccessMonteiro,Maurício de JesusAssunção,Fernando RizzoChaoliu,Zengeng2000-01-21T00:00:00Zoai:scielo:S1516-14391999000300011Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2000-01-21T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
title Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
spellingShingle Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
Monteiro,Maurício de Jesus
intermetallic compounds
NiAl
Fe
oxidation
title_short Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
title_full Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
title_fullStr Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
title_full_unstemmed Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
title_sort Influence of g-phase on the high- temperature oxidation of NiAl-Fe alloys
author Monteiro,Maurício de Jesus
author_facet Monteiro,Maurício de Jesus
Assunção,Fernando Rizzo
Chaoliu,Zeng
author_role author
author2 Assunção,Fernando Rizzo
Chaoliu,Zeng
author2_role author
author
dc.contributor.author.fl_str_mv Monteiro,Maurício de Jesus
Assunção,Fernando Rizzo
Chaoliu,Zeng
dc.subject.por.fl_str_mv intermetallic compounds
NiAl
Fe
oxidation
topic intermetallic compounds
NiAl
Fe
oxidation
description The oxidation of NiAl, NiAl-20at.%Fe and NiAl-30at.%Fe at 1000-1100 °C in air has been studied. Pure NiAl shows excellent oxidation resistance due to the formation of an Al2O3 layer. NiAl-20Fe also shows good oxidation resistance due to the formation of an Al2O3 scale on a <FONT FACE="Symbol">b</font>-phase substrate. Moreover, some nodules consisting of mixed oxides of Fe and Ni grow over the ductile <FONT FACE="Symbol">g</font>-phase surface incorporated to the <FONT FACE="Symbol">b</font>-phase substrate. NiAl-30Fe alloy undergoes a much faster oxidation due to the formation of a non-protective Fe and Ni-rich scale, which is extremely susceptible to spallation. The addition of Fe to NiAl is detrimental to its oxidation resistance.
publishDate 1999
dc.date.none.fl_str_mv 1999-07-01
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=S1516-14391999000300011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14391999000300011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14391999000300011
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.2 n.3 1999
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_ 1754212656554704896

Registros relacionados