Título
Comparative Study of the Metallurgical Quality of Primary and Secondary AlSi10MnMg Aluminium AlloysAutor-a (de otra institución)
Versión
Publicado
Derechos
© 2021 by the authors. Licensee MDPIAcceso
Acceso abiertoVersión del editor
https://doi.org/10.3390/met11071147Publicado en
Metals Vol. 11. N. 7. N. artículo 1147,Editor
MDPIPalabras clave
melt cleanliness
secondary alloy
primary alloy
density index ... [+]
secondary alloy
primary alloy
density index ... [+]
melt cleanliness
secondary alloy
primary alloy
density index
inclusions
AlSi10MnMg alloy
Aluminum alloys [-]
secondary alloy
primary alloy
density index
inclusions
AlSi10MnMg alloy
Aluminum alloys [-]
Resumen
The use of secondary aluminium is increasingly being promoted in the automotive industry for environmental reasons. The purpose of this study was to demonstrate that it is possible to obtain a recycle ... [+]
The use of secondary aluminium is increasingly being promoted in the automotive industry for environmental reasons. The purpose of this study was to demonstrate that it is possible to obtain a recycled AlSi10MnMg(Fe) aluminium alloy with equal metallurgical quality to that of a primary AlSi10MnMg alloy when an adequate melt treatment is applied. The melt treatment consisted of deoxidation, degassing and skimming in accordance with the detailed procedure described in this article. The metallurgical qualities of one primary and two secondary alloys were assessed using thermal analysis, the density index test, the macroinclusion test and the microinclusion level test before and after melt treatment. The thermal analysis allowed us to compare the variables of the solidification cooling curve (Al primary temperature and its undercooling; Al-Si eutectic temperature and its predictive modification rate). The density index test was used to evaluate the hydrogen gas content in the melt. The macroinclusion test was used to evaluate the melt cleanliness, while the microinclusion level test was used to perform the inclusion identification and quantification analyses. This study showed the feasibility of manufacturing structural components using 100% recycled secondary aluminium alloy through V-HPDC technology. [-]
Sponsorship
Gobierno VascoID Proyecto
GV/Elkartek 2019/KK-2019-00080/CAPV/Procesos y materiales innovadores para aplicaciones estructurales de aluminio en el sector automotriz/INNPROALColecciones
- Artículos - Ingeniería [546]
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