| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Cast Shop Technology
|
| Presentation Title |
Hydrogen Absorption of Aluminum-magnesium Melts from Humid Atmospheres |
| Author(s) |
Stefan Tichy, Philip Pucher, Bernd Prillhofer, Stefan Wibner, Helmut Antrekowitsch |
| On-Site Speaker (Planned) |
Stefan Tichy |
| Abstract Scope |
In casthouses, water vapor has long been considered a source of high hydrogen contents in aluminum melts. Moisture levels are usually highest in melting and holding furnaces, where H2O contents of up to 18 vol.% occur due to the combustion of natural gas with air. In the case of oxyfuel burners, contents of even more than 60 vol.% are theoretically possible. To avoid defects such as annealing bubbles or grain porosity in the subsequent production steps, the absorbed hydrogen must be reduced to a minimum by degassing treatments. To gain a better understanding of the interaction between liquid aluminum and water vapor, the hydrogen absorption of aluminum-magnesium melts under atmospheres with varying water vapor contents of 0-90 vol.% at around 700 °C (1300 °F) is investigated in this work. Furthermore, the influence of H2O on the oxidation behavior is also examined. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Other, Other |