<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically
In spite of technological importance of solidification of metallic alloys under radial heat flow, relatively few studies have been carried out in this area. In this work the solidification of Al 4.5 wt% Cu cylinders against a steel massive mold is analyzed and compared with unidirectional solidifica...
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Universidade Estadual de Maringá
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doaj-3af15cfdcba0496988bfa062efc11ea32020-11-25T00:59:48ZengUniversidade Estadual de MaringáActa Scientiarum: Technology1806-25631807-86642014-09-0136462362810.4025/actascitechnol.v36i4.1982311161<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional verticallyJean Robert P. Rodrigues0Mírian de Lurdes N. M. Mello1Marco Antonio Eid2Tiago do E. S. B. Nevez3Antonio S Araujo Junior4José R. P. Rodrigues5Universidade Federal do MaranhãoUniversidade Federal de ItajubáCentro Universitário de Araras Dr. Edmundo WdsonInstituto Federal de Educação, Ciência e Tecnologia do MaranhãoInstituto Federal de Educação, Ciência e Tecnologia do MaranhãoUniversidade Federal do MaranhãoIn spite of technological importance of solidification of metallic alloys under radial heat flow, relatively few studies have been carried out in this area. In this work the solidification of Al 4.5 wt% Cu cylinders against a steel massive mold is analyzed and compared with unidirectional solidification against a cooled mold. Initially temperature variations at different positions in the casting and in the mold were measured during solidification using a data acquisition system. These temperature variations were introduced in a numerical method in order to determine the variation of heat transfer coefficient at metal/mold interface by inverse method. The primary and secondary dendrite arm spacing variations were measured through optical microscopy. Comparisons carried out between experimental and numerical data showed that the numerical method describes well the solidification processes under radial heat flux.http://186.233.154.254/ojs/index.php/ActaSciTechnol/article/view/19823unidirectional solidificationradial heat flowheat transfer coefficientaluminum alloy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jean Robert P. Rodrigues Mírian de Lurdes N. M. Mello Marco Antonio Eid Tiago do E. S. B. Nevez Antonio S Araujo Junior José R. P. Rodrigues |
spellingShingle |
Jean Robert P. Rodrigues Mírian de Lurdes N. M. Mello Marco Antonio Eid Tiago do E. S. B. Nevez Antonio S Araujo Junior José R. P. Rodrigues <b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically Acta Scientiarum: Technology unidirectional solidification radial heat flow heat transfer coefficient aluminum alloy |
author_facet |
Jean Robert P. Rodrigues Mírian de Lurdes N. M. Mello Marco Antonio Eid Tiago do E. S. B. Nevez Antonio S Araujo Junior José R. P. Rodrigues |
author_sort |
Jean Robert P. Rodrigues |
title |
<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically |
title_short |
<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically |
title_full |
<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically |
title_fullStr |
<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically |
title_full_unstemmed |
<b>A Comparative study of solidification of Al-Cu alloy under flow of cylindrical radial heat and the unidirectional vertically |
title_sort |
<b>a comparative study of solidification of al-cu alloy under flow of cylindrical radial heat and the unidirectional vertically |
publisher |
Universidade Estadual de Maringá |
series |
Acta Scientiarum: Technology |
issn |
1806-2563 1807-8664 |
publishDate |
2014-09-01 |
description |
In spite of technological importance of solidification of metallic alloys under radial heat flow, relatively few studies have been carried out in this area. In this work the solidification of Al 4.5 wt% Cu cylinders against a steel massive mold is analyzed and compared with unidirectional solidification against a cooled mold. Initially temperature variations at different positions in the casting and in the mold were measured during solidification using a data acquisition system. These temperature variations were introduced in a numerical method in order to determine the variation of heat transfer coefficient at metal/mold interface by inverse method. The primary and secondary dendrite arm spacing variations were measured through optical microscopy. Comparisons carried out between experimental and numerical data showed that the numerical method describes well the solidification processes under radial heat flux. |
topic |
unidirectional solidification radial heat flow heat transfer coefficient aluminum alloy |
url |
http://186.233.154.254/ojs/index.php/ActaSciTechnol/article/view/19823 |
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