Improved oxidation resistance of Cr-Si coated Zircaloy with an in-situ formed Zr2Si diffusion barrier

被引：6
|
作者：
Zeng, Song [1 ]
Li, Jun-Feng [2 ]
Chen, Chen [1 ]
Meng, Yan [1 ]
Zhu, Chao-Wen [1 ]
Han, Xiao-Chun [1 ]
Bao, Yi-Wang [2 ]
Zhang, Hai-Bin [1 ]
机构：
[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Innovat Res Team Adv Ceram, Mianyang 621900, Peoples R China
[2] China Bldg Mat Acad, State Key Lab Green Bldg Mat, Beijing 100024, Peoples R China
来源：
NPJ MATERIALS DEGRADATION | 2023年 / 7卷 / 01期
基金：
中国国家自然科学基金;
关键词：
BEHAVIOR; COATINGS; ALLOY;
D O I：
10.1038/s41529-023-00373-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study, the dense Cr and Cr0.92Si0.08 coatings have been deposited on Zircaloy-4 substrates by the magnetron sputtering technique. The high-temperature oxidation resistance of coatings is evaluated in 1200 & DEG;C steam for 1-4 h. The Cr0.92Si0.08 coating shows better oxidation resistance than the Cr coating. The in-situ formed Zr2Si diffusion barrier inhibits the mutual diffusion of Cr and Zr. And the formation of a Cr2O3/SiO2 double-layer scale effectively improves the oxidation resistance of a single Cr2O3 layer. The formation of the in-situ diffusion barrier, Cr2O3/SiO2 scales and oxidation protection mechanisms of the Cr0.92Si0.08 coating have been discussed in detail.
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页数：11
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