1. Effect of water vapor on the oxidation behavior of Al2Zr alloys.
- Author
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Ma, Shuo, Liu, Panmei, Shangguan, Zixuan, Mou, Zetao, Yu, Liming, Liu, Yongchang, and Wang, Zumin
- Subjects
WATER vapor ,OXIDATION of water ,OXIDATION kinetics ,OXIDATION ,METALLIC glasses - Abstract
To reveal the effects of water vapor on the oxidation mechanism of Al–Zr-based materials, the Al
2 Zr alloy was oxidized in a wet atmosphere. Water vapor achieves the synchronous oxidation of Al and Zr to form amorphous (Al0.67 Zr0.33 )O1.66 oxide on the Al2 Zr surface. The oxidation kinetics of the Al2 Zr alloy is significantly retarded by the presence of water vapor. Compared with the oxygen molecules, water molecules are preferentially adsorbed on the surface, thereby providing fewer oxidizing species for wet oxidation than those for oxygen-involved oxidation. This work provides fundamental insights for surficial protection of structural alloys in humid environments. [ABSTRACT FROM AUTHOR]- Published
- 2023
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