Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure

Detalhes bibliográficos
Autor(a) principal: Figueiredo,Roberto B.
Data de Publicação: 2016
Outros Autores: Langdon,Terence G.
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=S1516-14392016000501144
Resumo: High-pressure torsion was used to process grade 2 titanium to 10 turns using different pressures up to a maximum of 8 GPa. X ray diffraction showed that the as-received material and the material processed at pressures of 2 GPa and 4 GPa were single phase but the material processed at 8 GPa contained both the h.c.p. and the simple hexagonal ω-phase. Nanoindentation was used to determine the mechanical behavior and the results show a pronounced increase in hardness due both to the severe plastic deformation processing and to the phase transformation at the highest pressure. A maximum hardness of ~4.7 GPa was attained.
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spelling Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressurecommercial purity titaniumhigh-pressure torsionphase transformationsevere plastic deformationHigh-pressure torsion was used to process grade 2 titanium to 10 turns using different pressures up to a maximum of 8 GPa. X ray diffraction showed that the as-received material and the material processed at pressures of 2 GPa and 4 GPa were single phase but the material processed at 8 GPa contained both the h.c.p. and the simple hexagonal ω-phase. Nanoindentation was used to determine the mechanical behavior and the results show a pronounced increase in hardness due both to the severe plastic deformation processing and to the phase transformation at the highest pressure. A maximum hardness of ~4.7 GPa was attained.ABM, ABC, ABPol2016-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501144Materials 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-2016-0403info:eu-repo/semantics/openAccessFigueiredo,Roberto B.Langdon,Terence G.eng2016-09-27T00:00:00Zoai:scielo:S1516-14392016000501144Revistahttp://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 Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
title Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
spellingShingle Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
Figueiredo,Roberto B.
commercial purity titanium
high-pressure torsion
phase transformation
severe plastic deformation
title_short Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
title_full Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
title_fullStr Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
title_full_unstemmed Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
title_sort Development of an ω-Phase in Grade 2 Titanium Processed by HPT at High Hydrostatic Pressure
author Figueiredo,Roberto B.
author_facet Figueiredo,Roberto B.
Langdon,Terence G.
author_role author
author2 Langdon,Terence G.
author2_role author
dc.contributor.author.fl_str_mv Figueiredo,Roberto B.
Langdon,Terence G.
dc.subject.por.fl_str_mv commercial purity titanium
high-pressure torsion
phase transformation
severe plastic deformation
topic commercial purity titanium
high-pressure torsion
phase transformation
severe plastic deformation
description High-pressure torsion was used to process grade 2 titanium to 10 turns using different pressures up to a maximum of 8 GPa. X ray diffraction showed that the as-received material and the material processed at pressures of 2 GPa and 4 GPa were single phase but the material processed at 8 GPa contained both the h.c.p. and the simple hexagonal ω-phase. Nanoindentation was used to determine the mechanical behavior and the results show a pronounced increase in hardness due both to the severe plastic deformation processing and to the phase transformation at the highest pressure. A maximum hardness of ~4.7 GPa was attained.
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=S1516-14392016000501144
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501144
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-MR-2016-0403
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
_version_ 1754212668771663872

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