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The stabilising effect of oxides in foamed aluminium alloy scrap

Vinod Kumar, G.S.; García-Moreno, Francisco; Banhart, John; Kennedy, Andrew R.


G.S. Vinod Kumar

Francisco García-Moreno

John Banhart

Andrew R. Kennedy


The expansion and stability of foams made from remelted aluminium alloy scrap has been studied. Foams made from scrap alloy contain oxide bi-films introduced from the swarf (machining chips and turnings) of LM26 alloy and these oxides act as stabilizing agents. The wettability of the oxides and hence the stabilisation is studied by varying the addition of Mg (0 to 2 wt.%) in the alloy. The viscosity of the melts with and without Mg addition is measured and correlated with foam expansion and stability. A detailed microstructural analysis of the base alloy and foam cell wall was conducted to obtain an understanding of the stabilisation behaviour of oxides.


Vinod Kumar, G., GarcĂ­a-Moreno, F., Banhart, J., & Kennedy, A. R. (2015). The stabilising effect of oxides in foamed aluminium alloy scrap. International Journal of Materials Research, 106(9), doi:10.3139/146.111255

Journal Article Type Article
Acceptance Date Jun 1, 2015
Publication Date Sep 1, 2015
Deposit Date Jun 28, 2016
Journal International Journal of Materials Research
Print ISSN 1862-5282
Electronic ISSN 1862-5282
Publisher Carl Hanser Verlag
Peer Reviewed Peer Reviewed
Volume 106
Issue 9
Public URL
Publisher URL
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