Study of high-entropy oxide diffusion barrier and diffusion resistance mechanism in high-temperature protective coatings

被引：4
|
作者：
Liu, He [1 ]
Liang, Zi [1 ]
Jiang, Yuchen [1 ]
Qu, Liu [1 ]
Guo, Cean [2 ]
机构：
[1] Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China
[2] Shenyang Ligong Univ, Sch Equipment Engn, Shenyang 110159, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 30卷
基金：
中国国家自然科学基金;
关键词：
High entropy coating; Diffusion barrier; NiCrAlY; High temperature oxidation; Diffusion resistance; CYCLIC OXIDATION; CRYSTAL; INTERDIFFUSION; BEHAVIOR; LAYER;
D O I：
10.1016/j.jmrt.2024.05.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to obtain high temperature protective coatings with low diffusivity, high entropy (HEA) as well as high entropy oxide (HEO) diffusion barriers were deposited between the NiCrAlY coating and the substrate by magnetron sputtering. These two coatings were subjected to constant temperature oxidation tests at 1050 degrees C. These results show that the two coatings containing diffusion barriers have better high-temperature oxidation properties compared to the NiCrAlY coating. Both HEA and HEO diffusion barriers have the desired performance in hindering the diffusion of elements between the coating and the substrate. The evolution of these two diffusion barriers and the mechanism of diffusion resistance during the oxidation process have been investigated.
引用
收藏
页码：5557 / 5568
页数：12
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