Improved oxidation resistance of Cr-Si coated Zircaloy with an in-situ formed Zr2Si diffusion barrier-Reference-Cited by-同舟云学术

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

Published:2023-07-05 Issue:1 Volume:7 Page:
ISSN:2397-2106
Container-title:npj Materials Degradation
language:en
Short-container-title:npj Mater Degrad

Author:

Zeng Song,Li Jun-Feng^ORCID,Chen Chen,Meng Yan,Zhu Chao-Wen,Han Xiao-Chun^ORCID,Bao Yi-Wang,Zhang Hai-Bin

Abstract

AbstractIn 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 °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.

Publisher

Springer Science and Business Media LLC

Subject

Materials Chemistry,Materials Science (miscellaneous),Chemistry (miscellaneous),Ceramics and Composites

Link

https://www.nature.com/articles/s41529-023-00373-2.pdf

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