Grain refinement of AZ91D magnesium alloy by MgCO3
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , , |
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=S1516-14392011000100021 |
Resumo: | The grain refining technique of AZ91D magnesium alloy by MgCO3 has been investigated. The refining mechanism and tensile properties of the resulting alloy have also been discussed. The results indicate that MgCO3 can decrease its grain size from 311 to 53µm. Correspondingly, the tensile properties are obviously improved. The higher the cooling rate from addition temperature to pouring temperature or the higher the addition temperature, the finer the grains. The melt treated by MgCO3 should be poured as soon as possible because the inoculation fading is quite quick. The microstructure sensitivity to the diameter of a cast rod is relatively high and the microstructures of the rods with large diameters are quite inhomogeneous. The refining mechanism of MgCO3 belongs to heterogeneous nucleation and the nucleant substrates are believed to be the Al4C3 particles formed from the reactions between the MgCO3 and the molten alloy. |
id |
ABMABCABPOL-1_ee4e98b0700d4e9b554230f7248d7104 |
---|---|
oai_identifier_str |
oai:scielo:S1516-14392011000100021 |
network_acronym_str |
ABMABCABPOL-1 |
network_name_str |
Materials research (São Carlos. Online) |
repository_id_str |
|
spelling |
Grain refinement of AZ91D magnesium alloy by MgCO3AZ91D magnesium alloygrain refinementMgCO3microstructureThe grain refining technique of AZ91D magnesium alloy by MgCO3 has been investigated. The refining mechanism and tensile properties of the resulting alloy have also been discussed. The results indicate that MgCO3 can decrease its grain size from 311 to 53µm. Correspondingly, the tensile properties are obviously improved. The higher the cooling rate from addition temperature to pouring temperature or the higher the addition temperature, the finer the grains. The melt treated by MgCO3 should be poured as soon as possible because the inoculation fading is quite quick. The microstructure sensitivity to the diameter of a cast rod is relatively high and the microstructures of the rods with large diameters are quite inhomogeneous. The refining mechanism of MgCO3 belongs to heterogeneous nucleation and the nucleant substrates are believed to be the Al4C3 particles formed from the reactions between the MgCO3 and the molten alloy.ABM, ABC, ABPol2011-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100021Materials Research v.14 n.1 2011reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392011005000017info:eu-repo/semantics/openAccessChen,Ti JunJiang,Xiang DongMa,YingWang,Rui QuanHao,Yuaneng2011-04-15T00:00:00Zoai:scielo:S1516-14392011000100021Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-04-15T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
title |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
spellingShingle |
Grain refinement of AZ91D magnesium alloy by MgCO3 Chen,Ti Jun AZ91D magnesium alloy grain refinement MgCO3 microstructure |
title_short |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
title_full |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
title_fullStr |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
title_full_unstemmed |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
title_sort |
Grain refinement of AZ91D magnesium alloy by MgCO3 |
author |
Chen,Ti Jun |
author_facet |
Chen,Ti Jun Jiang,Xiang Dong Ma,Ying Wang,Rui Quan Hao,Yuan |
author_role |
author |
author2 |
Jiang,Xiang Dong Ma,Ying Wang,Rui Quan Hao,Yuan |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Chen,Ti Jun Jiang,Xiang Dong Ma,Ying Wang,Rui Quan Hao,Yuan |
dc.subject.por.fl_str_mv |
AZ91D magnesium alloy grain refinement MgCO3 microstructure |
topic |
AZ91D magnesium alloy grain refinement MgCO3 microstructure |
description |
The grain refining technique of AZ91D magnesium alloy by MgCO3 has been investigated. The refining mechanism and tensile properties of the resulting alloy have also been discussed. The results indicate that MgCO3 can decrease its grain size from 311 to 53µm. Correspondingly, the tensile properties are obviously improved. The higher the cooling rate from addition temperature to pouring temperature or the higher the addition temperature, the finer the grains. The melt treated by MgCO3 should be poured as soon as possible because the inoculation fading is quite quick. The microstructure sensitivity to the diameter of a cast rod is relatively high and the microstructures of the rods with large diameters are quite inhomogeneous. The refining mechanism of MgCO3 belongs to heterogeneous nucleation and the nucleant substrates are believed to be the Al4C3 particles formed from the reactions between the MgCO3 and the molten alloy. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-01 |
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=S1516-14392011000100021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392011005000017 |
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.14 n.1 2011 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_ |
1754212660130349056 |