About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
Oxidation of Aluminum Alloys with Low and High Magnesium Content in a Hydrogen-Fired Melting Furnace |
| Author(s) |
Pooyan Kheirkhah, Valmiro Sa, Marie Kistler, Anand Rajendra Makwana |
| On-Site Speaker (Planned) |
Pooyan Kheirkhah |
| Abstract Scope |
Hydrogen combustion (low-carbon-intensity) can significantly lower the carbon emissions of secondary aluminum melting processes. Switching from a hydrocarbon to a carbon-free fuel (H2) will impact the composition of the furnace gases by eliminating the CO2 and increasing the H2O concentration. The effect of this furnace gas composition change on the oxidation of aluminum alloys with low and high magnesium content is investigated. The composition and structure of the oxides are analyzed using Scanning Electron Microscopy/Energy-Dispersive X-Ray Spectroscopy (SEM/EDS) and X-ray Diffraction (XRD) techniques. Additionally, the impact of melt holding temperature on melt loss and oxide type for different aluminum-magnesium alloys is presented. Results from microscopy and chemical composition analysis of the melt/oxides are evaluated to understand changes in melt properties that could be expected with the use of low-carbon-intensity fuels and/or oxidizers in secondary melting furnace operations. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Recycling and Secondary Recovery, Sustainability |