Microstructure and oxidation behavior of CrCN/TiSiCN nano-multilayer coatings on Zircaloy in high-temperature steam

文献类型: 外文期刊

第一作者: Li, Hao

作者: Li, Hao;Ma, Dayan;Deng, Junkai;Wang, Hongbo;Yun, Di;Hao, Zhe;Zhang, Ruiqian;Li, Zhendong

作者机构:

关键词: ATF cladding; CrCN; TiSiCN nano-multilayer coating; Microstructure; High-temperature steam oxidation

期刊名称:CORROSION SCIENCE ( 影响因子:8.3; 五年影响因子:8.6 )

ISSN: 0010-938X

年卷期: 2023 年 211 卷

页码:

收录情况: SCI

摘要: CrCN/TiSiCN nano-multilayer coatings with different C/N composition ratios were prepared on Zircaloy by hybrid multi-arc ion plating and magnetron sputtering technique, and the microstructures and oxidation be-haviors of the coatings in 1000 degrees C steam were investigated. At the C/N ratio of 1.0, the coating structure changed from a quasi-bicrystalline layer periodic arrangement to a crystalline/amorphous layer arrangement. Increasing C/N ratio inhibited the generation and mobility of N2 bubbles in the coatings during oxidation, avoiding crack generation and coating flaking. The coating with C/N of 1.0 exhibited optimal high-temperature oxidation resistance. Moreover, the oxidation mechanisms of CrCN/TiSiCN nano-multilayer coatings were discussed.

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