Title
Comparative Study of the Metallurgical Quality of Primary and Secondary AlSi10MnMg Aluminium AlloysAuthor (from another institution)
Version
VoR
Rights
© 2021 by the authors. Licensee MDPIAccess
Open accessPublisher’s version
https://doi.org/10.3390/met11071147Published at
Metals Vol. 11. N. 7. N. artículo 1147,Publisher
MDPIKeywords
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 [-]
Abstract
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 VascoProyect ID
GV/Elkartek 2019/KK-2019-00080/CAPV/Procesos y materiales innovadores para aplicaciones estructurales de aluminio en el sector automotriz/INNPROALCollections
- Articles - Engineering [605]
The following license files are associated with this item:
Related items
Showing items related by title, author, creator and subject.
-
Influence of Surface Finish and Porosity on the Fatigue behaviour of A356 Aluminium Casting Alloy
Hidalgo, Raquel; Esnaola, Jon Ander; Llavori, Inigo; Larrañaga, Miren; Herrero-Dorca, Nuria; Hurtado, Iñaki; Kortabarria, Aitor (EDP Sciences, 2018)In casting parts, due to the manufacturing process, the presence of defects such as porosity, inclusions and oxide films is unavoidable. All these irregularities have a negative effect on the component ... -
Effect of Boron Content and Cooling Rate on the Microstructure and Boride Formation of β-Solidifying γ-TiAl TNM Alloy
Bernal, Daniel; chamorro, xabier; Hurtado, Iñaki (MDPI AG, 2020)Boron is a unique and popular grain refiner element in cast titanium aluminide (TiAl) alloys, as it helps to improve mechanical properties if properly alloyed. However, the formation mechanism of different types of borides ... -
Warm tube hydroforming of 6082 aluminium alloy
Torca, Ireneo (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2011)Nowadays, the requirements demanded to many of the parts used in such industries as the aeronautic or the automotive industry are increasingly higher: more complex shapes, previously unimaginable, lower and lower radii, ...