Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys

Detalhes bibliográficos
Autor(a) principal: Wang,Zhifeng
Data de Publicação: 2012
Outros Autores: Zhao,Weimin, Qin,Chunling, Cui,Yan
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=S1516-14392012000100008
Resumo: A wedge-shaped copper mold was used to fabricate micro quasicrystals(QCs). Stable Mg-Zn-Y-based nano-QCs were directly synthesized through this simple route instead of crystallization from metallic glasses or complicated forming processes at high temperature. The study showed that on the tips of the wedge-shaped ingots, the minimum diameter of nano-QCs approach to 4~6 nm. The main size of nano-QCs is about 10~30 nm. The maximum microhardness of QCs has been dramatically improved to about HV440 which increased by about 280% compared with that of the petal-like QCs fabricated under common cast iron mold cooling conditions. Possessing a certain negative enthalpy of mixing and existence of Frank-Kasper-type phases determined the formation of Mg-Zn-Y-based nano-QCs. The further electrochemical studies showed that Mg71Zn26Y2Cu1 nano-QC alloy possess high corrosion resistance in simulated seawater and its corrosion resistance is much better than those of the Mg72Zn26Y2 and Mg71Zn26Y2Cu0.5 Ni0.5 nano-QC alloys.
id ABMABCABPOL-1_1246efdcd9589c258c1f3424aff77017
oai_identifier_str oai:scielo:S1516-14392012000100008
network_acronym_str ABMABCABPOL-1
network_name_str Materials research (São Carlos. Online)
repository_id_str
spelling Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloysnano-quasicrystalsmagnesium alloyMg-Zn-Y-based alloyswedge-shaped moldA wedge-shaped copper mold was used to fabricate micro quasicrystals(QCs). Stable Mg-Zn-Y-based nano-QCs were directly synthesized through this simple route instead of crystallization from metallic glasses or complicated forming processes at high temperature. The study showed that on the tips of the wedge-shaped ingots, the minimum diameter of nano-QCs approach to 4~6 nm. The main size of nano-QCs is about 10~30 nm. The maximum microhardness of QCs has been dramatically improved to about HV440 which increased by about 280% compared with that of the petal-like QCs fabricated under common cast iron mold cooling conditions. Possessing a certain negative enthalpy of mixing and existence of Frank-Kasper-type phases determined the formation of Mg-Zn-Y-based nano-QCs. The further electrochemical studies showed that Mg71Zn26Y2Cu1 nano-QC alloy possess high corrosion resistance in simulated seawater and its corrosion resistance is much better than those of the Mg72Zn26Y2 and Mg71Zn26Y2Cu0.5 Ni0.5 nano-QC alloys.ABM, ABC, ABPol2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000100008Materials Research v.15 n.1 2012reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392012005000004info:eu-repo/semantics/openAccessWang,ZhifengZhao,WeiminQin,ChunlingCui,Yaneng2012-02-23T00:00:00Zoai:scielo:S1516-14392012000100008Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2012-02-23T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
title Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
spellingShingle Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
Wang,Zhifeng
nano-quasicrystals
magnesium alloy
Mg-Zn-Y-based alloys
wedge-shaped mold
title_short Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
title_full Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
title_fullStr Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
title_full_unstemmed Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
title_sort Fabrication and corrosion resistance of Mg-Zn-Y-based nano-quasicrystals alloys
author Wang,Zhifeng
author_facet Wang,Zhifeng
Zhao,Weimin
Qin,Chunling
Cui,Yan
author_role author
author2 Zhao,Weimin
Qin,Chunling
Cui,Yan
author2_role author
author
author
dc.contributor.author.fl_str_mv Wang,Zhifeng
Zhao,Weimin
Qin,Chunling
Cui,Yan
dc.subject.por.fl_str_mv nano-quasicrystals
magnesium alloy
Mg-Zn-Y-based alloys
wedge-shaped mold
topic nano-quasicrystals
magnesium alloy
Mg-Zn-Y-based alloys
wedge-shaped mold
description A wedge-shaped copper mold was used to fabricate micro quasicrystals(QCs). Stable Mg-Zn-Y-based nano-QCs were directly synthesized through this simple route instead of crystallization from metallic glasses or complicated forming processes at high temperature. The study showed that on the tips of the wedge-shaped ingots, the minimum diameter of nano-QCs approach to 4~6 nm. The main size of nano-QCs is about 10~30 nm. The maximum microhardness of QCs has been dramatically improved to about HV440 which increased by about 280% compared with that of the petal-like QCs fabricated under common cast iron mold cooling conditions. Possessing a certain negative enthalpy of mixing and existence of Frank-Kasper-type phases determined the formation of Mg-Zn-Y-based nano-QCs. The further electrochemical studies showed that Mg71Zn26Y2Cu1 nano-QC alloy possess high corrosion resistance in simulated seawater and its corrosion resistance is much better than those of the Mg72Zn26Y2 and Mg71Zn26Y2Cu0.5 Ni0.5 nano-QC alloys.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-01
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=S1516-14392012000100008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000100008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392012005000004
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.1 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_ 1754212661241839616

Registros relacionados