Dissolution of hydrogen in metals and casting alloys
https://doi.org/10.21122/1683-6065-2022-3-53-57
Abstract
Thermodynamic calculations have shown that hydrogen from atmospheric water vapors can penetrate aluminum, iron and copper, especially into their melts. Hydrogen atoms in these metals are in free and adsorbed states. Strong and dense oxide films on the surfaces of aluminum, iron and copper significantly reduce the solubility of hydrogen in these metals. Copper and iron nanocrystals more actively adsorb atomic hydrogen than aluminum nanocrystals. This is one of the main reasons for the weak solubility of hydrogen in aluminum and the large desorption of hydrogen atoms in the crystallization of aluminum compared to iron and copper.
Keywords
aluminum,
iron,
copper,
nanocrystals,
crystallization,
adsorption,
hydrogen solubility,
Gibbs energy
About the Authors
E. I. Marukovich
Institute of Technology of Metals of National Academy of Sciences of Belarus
Belarus
Mogilev, Belarus, 11, Bialynitskogo-Biruli str.
Belarus
Mogilev, Belarus, 11, Bialynitskogo-Biruli str.
V. Yu. Stetsenko
Institute of Technology of Metals of National Academy of Sciences of Belarus
Belarus
Mogilev, Belarus, 11, Bialynitskogo-Biruli str.
Belarus
Mogilev, Belarus, 11, Bialynitskogo-Biruli str.
A. V. Stetsenko
Belarusian‑Russian University
Belarus
Mogilev, Belarus, 43, Mira ave.
Belarus
Mogilev, Belarus, 43, Mira ave.
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Review
For citations:
Marukovich E.I., Stetsenko V.Yu., Stetsenko A.V. Dissolution of hydrogen in metals and casting alloys. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2022;(3):53-57. (In Russ.) https://doi.org/10.21122/1683-6065-2022-3-53-57
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