Structure controlling strategy towards the high-temperature oxidation in multilayered coatings: an experience from Cr/CrAlN system

J. D. Zuo; Y. Q. Wang; Q. Y. Sun; J. Y. Zhang; G. Liu; J. Sun

doi:10.1038/s41529-025-00570-1

Structure controlling strategy towards the high-temperature oxidation in multilayered coatings: an experience from Cr/CrAlN system

J. D. Zuo
, Y. Q. Wang
, Q. Y. Sun
, J. Y. Zhang
, G. Liu
, J. Sun

School of Materials Science and Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Cr/CrAlN multilayered coatings with layer thickness h ranging within 20–500 nm were prepared on Zircaloy-4 and then oxidized in a 1000 °C steam environment. The oxidation resistance of coatings improved significantly with the increasing h, which is derived from the evolution of surface oxides from Cr₂O₃ to α-Al₂O₃. Larger h can provide a better barrier effect for Al diffusion and help maintain a locally higher Al concentration near the surface, which is favorable for the formation of an α-Al₂O₃ layer. The oxidation process was analyzed to deepen the understanding of the oxidation behavior in this and other similar systems.

Original language	English
Article number	22
Journal	npj Materials Degradation
Volume	9
Issue number	1
DOIs	https://doi.org/10.1038/s41529-025-00570-1
State	Published - Dec 2025

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title = "Structure controlling strategy towards the high-temperature oxidation in multilayered coatings: an experience from Cr/CrAlN system",

abstract = "Cr/CrAlN multilayered coatings with layer thickness h ranging within 20–500 nm were prepared on Zircaloy-4 and then oxidized in a 1000 °C steam environment. The oxidation resistance of coatings improved significantly with the increasing h, which is derived from the evolution of surface oxides from Cr2O3 to α-Al2O3. Larger h can provide a better barrier effect for Al diffusion and help maintain a locally higher Al concentration near the surface, which is favorable for the formation of an α-Al2O3 layer. The oxidation process was analyzed to deepen the understanding of the oxidation behavior in this and other similar systems.",

author = "Zuo, \{J. D.\} and Wang, \{Y. Q.\} and Sun, \{Q. Y.\} and Zhang, \{J. Y.\} and G. Liu and J. Sun",

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doi = "10.1038/s41529-025-00570-1",

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T2 - an experience from Cr/CrAlN system

AU - Zuo, J. D.

AU - Wang, Y. Q.

AU - Sun, Q. Y.

AU - Zhang, J. Y.

AU - Liu, G.

AU - Sun, J.

PY - 2025/12

Y1 - 2025/12

N2 - Cr/CrAlN multilayered coatings with layer thickness h ranging within 20–500 nm were prepared on Zircaloy-4 and then oxidized in a 1000 °C steam environment. The oxidation resistance of coatings improved significantly with the increasing h, which is derived from the evolution of surface oxides from Cr2O3 to α-Al2O3. Larger h can provide a better barrier effect for Al diffusion and help maintain a locally higher Al concentration near the surface, which is favorable for the formation of an α-Al2O3 layer. The oxidation process was analyzed to deepen the understanding of the oxidation behavior in this and other similar systems.

AB - Cr/CrAlN multilayered coatings with layer thickness h ranging within 20–500 nm were prepared on Zircaloy-4 and then oxidized in a 1000 °C steam environment. The oxidation resistance of coatings improved significantly with the increasing h, which is derived from the evolution of surface oxides from Cr2O3 to α-Al2O3. Larger h can provide a better barrier effect for Al diffusion and help maintain a locally higher Al concentration near the surface, which is favorable for the formation of an α-Al2O3 layer. The oxidation process was analyzed to deepen the understanding of the oxidation behavior in this and other similar systems.

UR - https://www.scopus.com/pages/publications/86000309138

U2 - 10.1038/s41529-025-00570-1

DO - 10.1038/s41529-025-00570-1

M3 - 文章

AN - SCOPUS:86000309138

SN - 2397-2106

VL - 9

JO - npj Materials Degradation

JF - npj Materials Degradation

IS - 1

M1 - 22

ER -

Structure controlling strategy towards the high-temperature oxidation in multilayered coatings: an experience from Cr/CrAlN system

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