Bakedano, A.; Niklas, A.; Fernández-Calvo, A.I.; Plata, G.; Lozares, J.; Berlanga-Labari, C. Comparative Study of the Metallurgical Quality of Primary and Secondary AlSi10MnMg Aluminium Alloys. Metals2021, 11, 1147.
Bakedano, A.; Niklas, A.; Fernández-Calvo, A.I.; Plata, G.; Lozares, J.; Berlanga-Labari, C. Comparative Study of the Metallurgical Quality of Primary and Secondary AlSi10MnMg Aluminium Alloys. Metals 2021, 11, 1147.
Bakedano, A.; Niklas, A.; Fernández-Calvo, A.I.; Plata, G.; Lozares, J.; Berlanga-Labari, C. Comparative Study of the Metallurgical Quality of Primary and Secondary AlSi10MnMg Aluminium Alloys. Metals2021, 11, 1147.
Bakedano, A.; Niklas, A.; Fernández-Calvo, A.I.; Plata, G.; Lozares, J.; Berlanga-Labari, C. Comparative Study of the Metallurgical Quality of Primary and Secondary AlSi10MnMg Aluminium Alloys. Metals 2021, 11, 1147.
Abstract
This work has the purpose to demonstrate that if an adequate melt treatment is applied, it is pos-sible to obtain recycled aluminium alloy AlSi10MnMg(Fe) with as good metal cleanliness than primary AlSi10MnMg alloy. The melt quality is assessed by the thermal analysis, density index, macro- and micro-inclusions tests, of one primary and two secondary alloys, before and after the melt treatment. The melt treatment is based on deoxidation, degassing and skimming with de-tailed procedure described in this article. The different analysis are: Thermal analysis to compare the variables of the solidification cooling curve (Al primary temperature and its undercooling; Al-Si eutectic temperature and its recalescence); Density index is used to evaluate the hydrogen gas content in the melt; Macroinclusions level is analysed after solidifying the melt under vacuum of 5 mbar, favouring inclusion floatation to the sample surface; Microinclusion level is evaluate with porous disc filtration apparatus (similar to PoDFA).
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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