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.

引用

页数：11

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