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.

引用

页数：14

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