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Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing

Bibliographic Details
Main Author: Santana,Diego de Araujo
Publication Date: 2019
Other Authors: Kiminami,Claudio Shyinti, Coury,Francisco Gil, Liberato,Giovanne Lopes, Gargarella,Piter, Kaufman,Michael Joseph
Format: Article
Language: eng
Source: Materials research (São Carlos. Online)
Download full: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200213
Summary: An alternative route to obtain bulk metallic glasses is by consolidation of metallic glass powders by deforming these materials in the temperature interval between the crystallization temperature and the glass transition temperature, where the material flows with a reduced viscosity. In the present work, bulk parts of the Fe43.2Co28.8B19.2Si4.8Nb4 alloy were produced by hot-pressing gas-atomized powders (GAP) under different uniaxial pressures. Different microstructural analysis revealed that the initial powder as well as the consolidated parts were mostly amorphous, with similar transformation temperatures, showing that bulk samples of this alloy can be produced by conformation in the supercooled liquid region. The sample conformed under the highest pressure (1GPa) exhibited the highest relative density of 96.1±0.5%. These results show that hot pressing of Fe-based gas-atomized powders is a promising route for producing Fe-based bulk metallic glasses.
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spelling Consolidation of Fe-Based Metallic Glass Powders by Hot PressingIron-based metallic glass alloysatomizationhot pressingAn alternative route to obtain bulk metallic glasses is by consolidation of metallic glass powders by deforming these materials in the temperature interval between the crystallization temperature and the glass transition temperature, where the material flows with a reduced viscosity. In the present work, bulk parts of the Fe43.2Co28.8B19.2Si4.8Nb4 alloy were produced by hot-pressing gas-atomized powders (GAP) under different uniaxial pressures. Different microstructural analysis revealed that the initial powder as well as the consolidated parts were mostly amorphous, with similar transformation temperatures, showing that bulk samples of this alloy can be produced by conformation in the supercooled liquid region. The sample conformed under the highest pressure (1GPa) exhibited the highest relative density of 96.1±0.5%. These results show that hot pressing of Fe-based gas-atomized powders is a promising route for producing Fe-based bulk metallic glasses.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200213Materials Research v.22 n.2 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0581info:eu-repo/semantics/openAccessSantana,Diego de AraujoKiminami,Claudio ShyintiCoury,Francisco GilLiberato,Giovanne LopesGargarella,PiterKaufman,Michael Josepheng2019-01-15T00:00:00Zoai:scielo:S1516-14392019000200213Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-01-15T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
title Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
spellingShingle Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
Santana,Diego de Araujo
Iron-based metallic glass alloys
atomization
hot pressing
title_short Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
title_full Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
title_fullStr Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
title_full_unstemmed Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
title_sort Consolidation of Fe-Based Metallic Glass Powders by Hot Pressing
author Santana,Diego de Araujo
author_facet Santana,Diego de Araujo
Kiminami,Claudio Shyinti
Coury,Francisco Gil
Liberato,Giovanne Lopes
Gargarella,Piter
Kaufman,Michael Joseph
author_role author
author2 Kiminami,Claudio Shyinti
Coury,Francisco Gil
Liberato,Giovanne Lopes
Gargarella,Piter
Kaufman,Michael Joseph
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Santana,Diego de Araujo
Kiminami,Claudio Shyinti
Coury,Francisco Gil
Liberato,Giovanne Lopes
Gargarella,Piter
Kaufman,Michael Joseph
dc.subject.por.fl_str_mv Iron-based metallic glass alloys
atomization
hot pressing
topic Iron-based metallic glass alloys
atomization
hot pressing
description An alternative route to obtain bulk metallic glasses is by consolidation of metallic glass powders by deforming these materials in the temperature interval between the crystallization temperature and the glass transition temperature, where the material flows with a reduced viscosity. In the present work, bulk parts of the Fe43.2Co28.8B19.2Si4.8Nb4 alloy were produced by hot-pressing gas-atomized powders (GAP) under different uniaxial pressures. Different microstructural analysis revealed that the initial powder as well as the consolidated parts were mostly amorphous, with similar transformation temperatures, showing that bulk samples of this alloy can be produced by conformation in the supercooled liquid region. The sample conformed under the highest pressure (1GPa) exhibited the highest relative density of 96.1±0.5%. These results show that hot pressing of Fe-based gas-atomized powders is a promising route for producing Fe-based bulk metallic glasses.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
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=S1516-14392019000200213
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200213
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2018-0581
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.22 n.2 2019
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_ 1754212674339602432

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