Systematic investigation of the oxidation behavior of Fe-Cr-Al cladding alloys in high-temperature steam

被引：16
|
作者：
Wang, Peng [1 ]
Qi, Wen [1 ]
Yang, Kun [1 ]
Qiao, Yingjie [1 ]
Wang, Xiaodong [1 ]
Zheng, Ting [1 ]
Bai, Chengying [1 ]
Liu, Zhen [1 ]
Zhang, Xiaohong [1 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Heilongjiang 150001, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 207卷
关键词：
Nuclear cladding; Alloys; Steam oxidation; Oxidation film; ALUMINA SCALES; FECRAL ALLOYS; NUCLEAR-FUEL; WATER; KINETICS; ENVIRONMENTS; IRRADIATION; PERFORMANCE; PARTICLES; ZIRCONIUM;
D O I：
10.1016/j.corsci.2022.110595
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study investigated the effect of the Cr/Al ratio on the microstructure and steam oxidation behavior of Fe-Cr -Al alloys at temperatures between 1000 ? and 1300 ?. The results indicated a two-step oxidation process, including initial fast oxidation and film formation followed by long-term oxidation. The oxidizing film on the surface was dominated by submicron grain-sized Al2O3 and its thickness increased with the Cr or Al ratio. For the alloys with a high Cr or Al ratio, the rapid formation of a surface-oxidizing film acted as a passivation layer to reduce the water molecule diffusion rate, as confirmed by the corresponding exponential oxidation factor.
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页数：14
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