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dc.contributor.author
Ares, Alicia Esther
dc.contributor.author
Schvezov, Carlos Enrique
dc.date.available
2022-04-29T15:18:28Z
dc.date.issued
2007-05
dc.identifier.citation
Ares, Alicia Esther; Schvezov, Carlos Enrique; Influence of Solidification Thermal Parameters on the Columnar-to-Equiaxed Transition of Aluminum-Zinc and Zinc-Aluminum Alloys; Springer; Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science; 38; 7; 5-2007; 1485-1499
dc.identifier.issn
1073-5623
dc.identifier.uri
http://hdl.handle.net/11336/156123
dc.description.abstract
Understanding the interaction between the parameters involved in the columnar-to-equiaxed transition (CET) has gained considerable attention over the last two decades in the study of the structure of ingot castings. The present investigation was undertaken to investigate experimentally the directional solidification of Al-Zn and Zn-Al (ZA) alloys under different conditions of superheat and heat-transfer efficiencies at the metal/mold interface. The CET is observed; grain sizes are measured and the observations are related to the solidification thermal parameters: cooling rates, growth rates, thermal gradients, and recalescence determined from the temperature vs time curves. The temperature gradient in the melt, measured during the transition, is between –0.338 °C/mm and 0.167 °C/mm. In addition, there is an increase in the velocity of the liquidus front faster than the solidus front, which increases the size of the mushy zone. The size of the equiaxed grains increases with distance from the transition, an observation that was independent of alloy composition. The observations indicate that the transition is the result of a competition between coarse columnar dendrites and finer equiaxed dendrites. The results are compared with those previously obtained in lead-tin alloys.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SOLIDIFICATION
dc.subject
COLUMNAR TO EQUIAXED TRANSITION
dc.subject
THERMAL PARAMETERS
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ZN - AL ALLOYS
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Influence of Solidification Thermal Parameters on the Columnar-to-Equiaxed Transition of Aluminum-Zinc and Zinc-Aluminum Alloys
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-06-07T16:06:18Z
dc.journal.volume
38
dc.journal.number
7
dc.journal.pagination
1485-1499
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Ares, Alicia Esther. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Grupo de Materiales, Modelización y Metrología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina
dc.description.fil
Fil: Schvezov, Carlos Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Grupo de Materiales, Modelización y Metrología; Argentina
dc.journal.title
Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s11661-007-9111-z
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11661-007-9111-z
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