Hydrogen Absorption of Aluminum-Magnesium Melts from Humid Atmospheres
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Standard
Light Metals 2023. 2023. p. 920-927.
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Harvard
APA
Vancouver
Author
Bibtex - Download
}
RIS (suitable for import to EndNote) - Download
TY - GEN
T1 - Hydrogen Absorption of Aluminum-Magnesium Melts from Humid Atmospheres
AU - Tichy, Stefan
AU - Pucher, Philip
AU - Prillhofer, Bernd
AU - Wibner, Stefan
AU - Antrekowitsch, Helmut
PY - 2023/2/8
Y1 - 2023/2/8
N2 - 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.
AB - 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.
KW - Aluminum
KW - Hydrogen
KW - Water vapor
KW - Hycal
KW - Oxidation
UR - https://link.springer.com/chapter/10.1007/978-3-031-22532-1_122
M3 - Conference contribution
SN - 978-3-031-22531-4
SN - 978-3-031-22534-5
SP - 920
EP - 927
BT - Light Metals 2023
ER -
