Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/111425
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Containerless Solidification and Characterization of Industrial Alloys |
Autor: | Ilbagi, A.; Henein, H.; Chen, J.; Herlach, D.M.; Lengsdorf, R.; Gandin, Ch.-A.; Tourret, D.; García Escorial, Asunción CSIC ORCID | Palabras clave: | Microstructure of AlFe alloys Gas atomization Industrial Alloys |
Fecha de publicación: | 2011 | Editor: | Institute of Physics (Great Britain) | Citación: | Journal of Physics: Conference Series 327: 12007- 12023 (2011) | Resumen: | Containerless solidification using electromagnetic levitator (EML), gas atomization and an instrumented drop tube, known as impulse atomization is investigated for Al-Fe and AlNi alloys. The effects of primary phase and eutectic undercooling on the microstructure of AlFe alloys are investigated using the impulse drop tube and parabolic flight. The TEM characterization on the eutectic microstructure of impulse-atomized Al-Fe powders with two compositions showed that the metastable AlmFe formed in these alloys. Also, the growth undercooling that the dendritic front experiences during the solidification of the droplet resulted in variation of dendrite growth direction from <100> to <111>. For Al-4 at%Fe, it was found that in reduced-gravity and in the impulse-atomized droplets the primary intermetallic forms with a flower-like morphology, whereas in the terrestrial EML sample it has a needle like morphology. For Al-Ni, the effect of primary phase undercooling on dendrite growth velocity under terrestrial and reduced-gravity condition is discussed. It is shown that under terrestrial conditions, in the Ni-rich alloys with increasing undercooling the growth velocity increases, whereas in the Al-rich alloys the growth velocity decreases. However, the Al-rich alloy that was studied in reduced-gravity showed similar behavior to that of Ni-rich alloys. Furthermore, the effect of cooling rate on the phase fractions and metastable phase formation of impulse-atomized Al-Ni alloys is compared with EML. A microsegregation model for the solidification of Al-Ni alloys is applied to impulse atomized powders. The model accounts for the occurrence of several phase transformations, including one or several peritectic reactions and one eutectic reaction | URI: | http://hdl.handle.net/10261/111425 | DOI: | 10.1088/1742-6596/327/1/012007 | Identificadores: | doi: 10.1088/1742-6596/327/1/012007 issn: 1742-6588 |
Aparece en las colecciones: | (CENIM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Containerless Soldif.pdf | 5,64 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
4
checked on 18-abr-2024
WEB OF SCIENCETM
Citations
1
checked on 29-feb-2024
Page view(s)
439
checked on 24-abr-2024
Download(s)
379
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.