On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFPA |
Texto Completo: | http://repositorio.ufpa.br/jspui/handle/2011/8886 |
Resumo: | In order to investigate the effect of natural convection in columnar to equiaxed transition (CET), Al-3.0wt.%Cu and Al-3.0wt.%Cu-5.5wt.%Si alloys ingots were obtained during the transient horizontal directional solidification (THDS). Aiming to analyze the effect of superheat in the formation of the macrostructure in ternary Al-Cu-Si alloy, the experiments were conducted with three superheat temperatures above the liquidus temperature of the ternary alloy. A water-cooled solidification experimental device was used. Continuous temperature measurements were made during solidification at different positions in the casting and the data were automatically acquired. Thermal analysis has been applied to determine the thermal parameters such as growth rate (VL), cooling rate (TR) and temperature gradient (GL), whose values have been interrelated with the CET. The observation of the macrostructures has indicated that the resulting thermosolutal convection combined with superheat seem to favor the transition, which did not occur in a single plane, for all ingots obtained, i.e., it has been seen in a range of positions in ingots. The addition of Si element in binary Al-Cu alloy anticipates the CET. A comparison with experimental results for CET occurrence in different growth directions has been carried out. |
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2017-07-20T16:30:13Z2017-07-20T16:30:13Z2015-12GOMES, Carlos Henrique Ursolino et al. On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys. Materiais Research, São Carlos, v. 18, n. 6, p. 1362-1371, nov./dez. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000601362&lng=pt&nrm=iso>. Acesso em: 20 jul. 2017. Epub 04-Dez-2015. <http://dx.doi.org/10.1590/1516-1439.036315>.1980-5373http://repositorio.ufpa.br/jspui/handle/2011/8886In order to investigate the effect of natural convection in columnar to equiaxed transition (CET), Al-3.0wt.%Cu and Al-3.0wt.%Cu-5.5wt.%Si alloys ingots were obtained during the transient horizontal directional solidification (THDS). Aiming to analyze the effect of superheat in the formation of the macrostructure in ternary Al-Cu-Si alloy, the experiments were conducted with three superheat temperatures above the liquidus temperature of the ternary alloy. A water-cooled solidification experimental device was used. Continuous temperature measurements were made during solidification at different positions in the casting and the data were automatically acquired. Thermal analysis has been applied to determine the thermal parameters such as growth rate (VL), cooling rate (TR) and temperature gradient (GL), whose values have been interrelated with the CET. The observation of the macrostructures has indicated that the resulting thermosolutal convection combined with superheat seem to favor the transition, which did not occur in a single plane, for all ingots obtained, i.e., it has been seen in a range of positions in ingots. The addition of Si element in binary Al-Cu alloy anticipates the CET. A comparison with experimental results for CET occurrence in different growth directions has been carried out.porUniversidade Federal do ParáUFPABrasilMaterials ResearchLigas de alumínioSolidificaçãoAnálise térmicaParâmetros térmicosOn the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloysinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article18613621371GOMES, Carlos Henrique UrsolinoKIKUCHI, Rafael Hideo LopesBARROS, André dos SantosSILVA, José Nazareno Santos daSILVA, Maria Adrina Paixão de Souza daMOREIRA, Antonio Luciano SeabraROCHA, Otávio Fernandes Lima dainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFPAinstname:Universidade Federal do Pará (UFPA)instacron:UFPAORIGINALArtigo_NaturalConvectionColumnar.pdfArtigo_NaturalConvectionColumnar.pdfapplication/pdf2966050http://repositorio.ufpa.br/oai/bitstream/2011/8886/1/Artigo_NaturalConvectionColumnar.pdf30dcfdce0d94c6b550f25f5c29a6958dMD51CC-LICENSElicense_urllicense_urltext/plain; charset=utf-849http://repositorio.ufpa.br/oai/bitstream/2011/8886/2/license_url4afdbb8c545fd630ea7db775da747b2fMD52license_textlicense_texttext/html; charset=utf-80http://repositorio.ufpa.br/oai/bitstream/2011/8886/3/license_textd41d8cd98f00b204e9800998ecf8427eMD53license_rdflicense_rdfapplication/rdf+xml; charset=utf-80http://repositorio.ufpa.br/oai/bitstream/2011/8886/4/license_rdfd41d8cd98f00b204e9800998ecf8427eMD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81866http://repositorio.ufpa.br/oai/bitstream/2011/8886/5/license.txt43cd690d6a359e86c1fe3d5b7cba0c9bMD55TEXTArtigo_NaturalConvectionColumnar.pdf.txtArtigo_NaturalConvectionColumnar.pdf.txtExtracted texttext/plain30128http://repositorio.ufpa.br/oai/bitstream/2011/8886/6/Artigo_NaturalConvectionColumnar.pdf.txt223a5509245d4533b64740ee7cc96a43MD562011/88862017-10-16 09:27:24.826oai:repositorio.ufpa.br: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ório InstitucionalPUBhttp://repositorio.ufpa.br/oai/requestriufpabc@ufpa.bropendoar:21232017-10-16T12:27:24Repositório Institucional da UFPA - Universidade Federal do Pará (UFPA)false |
dc.title.pt_BR.fl_str_mv |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
title |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
spellingShingle |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys GOMES, Carlos Henrique Ursolino Ligas de alumínio Solidificação Análise térmica Parâmetros térmicos |
title_short |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
title_full |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
title_fullStr |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
title_full_unstemmed |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
title_sort |
On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys |
author |
GOMES, Carlos Henrique Ursolino |
author_facet |
GOMES, Carlos Henrique Ursolino KIKUCHI, Rafael Hideo Lopes BARROS, André dos Santos SILVA, José Nazareno Santos da SILVA, Maria Adrina Paixão de Souza da MOREIRA, Antonio Luciano Seabra ROCHA, Otávio Fernandes Lima da |
author_role |
author |
author2 |
KIKUCHI, Rafael Hideo Lopes BARROS, André dos Santos SILVA, José Nazareno Santos da SILVA, Maria Adrina Paixão de Souza da MOREIRA, Antonio Luciano Seabra ROCHA, Otávio Fernandes Lima da |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
GOMES, Carlos Henrique Ursolino KIKUCHI, Rafael Hideo Lopes BARROS, André dos Santos SILVA, José Nazareno Santos da SILVA, Maria Adrina Paixão de Souza da MOREIRA, Antonio Luciano Seabra ROCHA, Otávio Fernandes Lima da |
dc.subject.por.fl_str_mv |
Ligas de alumínio Solidificação Análise térmica Parâmetros térmicos |
topic |
Ligas de alumínio Solidificação Análise térmica Parâmetros térmicos |
description |
In order to investigate the effect of natural convection in columnar to equiaxed transition (CET), Al-3.0wt.%Cu and Al-3.0wt.%Cu-5.5wt.%Si alloys ingots were obtained during the transient horizontal directional solidification (THDS). Aiming to analyze the effect of superheat in the formation of the macrostructure in ternary Al-Cu-Si alloy, the experiments were conducted with three superheat temperatures above the liquidus temperature of the ternary alloy. A water-cooled solidification experimental device was used. Continuous temperature measurements were made during solidification at different positions in the casting and the data were automatically acquired. Thermal analysis has been applied to determine the thermal parameters such as growth rate (VL), cooling rate (TR) and temperature gradient (GL), whose values have been interrelated with the CET. The observation of the macrostructures has indicated that the resulting thermosolutal convection combined with superheat seem to favor the transition, which did not occur in a single plane, for all ingots obtained, i.e., it has been seen in a range of positions in ingots. The addition of Si element in binary Al-Cu alloy anticipates the CET. A comparison with experimental results for CET occurrence in different growth directions has been carried out. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-12 |
dc.date.accessioned.fl_str_mv |
2017-07-20T16:30:13Z |
dc.date.available.fl_str_mv |
2017-07-20T16:30:13Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
GOMES, Carlos Henrique Ursolino et al. On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys. Materiais Research, São Carlos, v. 18, n. 6, p. 1362-1371, nov./dez. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000601362&lng=pt&nrm=iso>. Acesso em: 20 jul. 2017. Epub 04-Dez-2015. <http://dx.doi.org/10.1590/1516-1439.036315>. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufpa.br/jspui/handle/2011/8886 |
dc.identifier.issn.pt_BR.fl_str_mv |
1980-5373 |
identifier_str_mv |
GOMES, Carlos Henrique Ursolino et al. On the Natural Convection in the Columnar to Equiaxed Transition in Directionally Solidified Aluminum-based Binary and Multicomponent Alloys. Materiais Research, São Carlos, v. 18, n. 6, p. 1362-1371, nov./dez. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000601362&lng=pt&nrm=iso>. Acesso em: 20 jul. 2017. Epub 04-Dez-2015. <http://dx.doi.org/10.1590/1516-1439.036315>. 1980-5373 |
url |
http://repositorio.ufpa.br/jspui/handle/2011/8886 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.ispartof.pt_BR.fl_str_mv |
Materials Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal do Pará |
dc.publisher.initials.fl_str_mv |
UFPA |
dc.publisher.country.fl_str_mv |
Brasil |
publisher.none.fl_str_mv |
Universidade Federal do Pará |
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reponame:Repositório Institucional da UFPA instname:Universidade Federal do Pará (UFPA) instacron:UFPA |
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Universidade Federal do Pará (UFPA) |
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UFPA |
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UFPA |
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Repositório Institucional da UFPA |
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Repositório Institucional da UFPA |
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