The stabilising effect of oxides in foamed aluminium alloy scrap
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G. S. Vinod Kumar
, Francisco García-Moreno , John Banhart und Andrew Kennedy
Abstract
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.
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© 2015, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Kinetics for gas–solid reactions involving dual-reaction interfaces
- Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
- Material characterisation to identify the rheological behaviour for powder injection moulding
- Isothermal section of Nd–Mn–As phase diagram at 800 °C
- Influence of bath temperature and pH on the structure of electrodeposited cobalt nanowires
- Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys
- The investigation of mechanical properties of B4C-reinforced AlSi7 foams
- The stabilising effect of oxides in foamed aluminium alloy scrap
- Physical chemistry of WC-12 %Co coatings deposited by thermal spraying at different standoff distances
- Experimental investigation on the tensile behavior of a transparent polyurethane interlayer
- Short Communications
- Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
- Gas induced semi-solid process effects on microstructure and mechanical properties of 319 aluminum alloy
- Ductile fracture behavior of low carbon high strength steel using continuum damage mechanics
- Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
- People
- Berthold Scholtes on the occasion of his 65th birthday
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Kinetics for gas–solid reactions involving dual-reaction interfaces
- Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
- Material characterisation to identify the rheological behaviour for powder injection moulding
- Isothermal section of Nd–Mn–As phase diagram at 800 °C
- Influence of bath temperature and pH on the structure of electrodeposited cobalt nanowires
- Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys
- The investigation of mechanical properties of B4C-reinforced AlSi7 foams
- The stabilising effect of oxides in foamed aluminium alloy scrap
- Physical chemistry of WC-12 %Co coatings deposited by thermal spraying at different standoff distances
- Experimental investigation on the tensile behavior of a transparent polyurethane interlayer
- Short Communications
- Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
- Gas induced semi-solid process effects on microstructure and mechanical properties of 319 aluminum alloy
- Ductile fracture behavior of low carbon high strength steel using continuum damage mechanics
- Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
- People
- Berthold Scholtes on the occasion of his 65th birthday
- DGM News
- DGM News