Influence of annealing treatment on the microstructure and corrosion resistance of AlxTiyCoCrFeNi high-entropy coatings

被引：0
作者：
Zhou, Yongkuan [1 ]
Kang, Jiajie [2 ,3 ]
Ma, Guozheng [4 ]
Zhu, Lina [2 ,3 ]
Da, Qiang [2 ,4 ]
Wu, Xulei [1 ]
Li, Ruifeng [1 ]
Liu, Bin [1 ]
机构：
[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212100, Peoples R China
[2] China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China
[3] China Univ Geosci, Zhengzhou Inst, Zhengzhou 451283, Beijing, Peoples R China
[4] Acad Armored Forces Engn, Natl Key Lab Remfg, Beijing 100072, Peoples R China
来源：
CORROSION SCIENCE | 2025年 / 249卷
基金：
中国国家自然科学基金;
关键词：
Annealing; High-entropy coating; Microstructure; Corrosion; MECHANICAL-PROPERTIES; BEHAVIOR; ALLOY; HEAT; TI; EVOLUTION; PHASES;
D O I：
10.1016/j.corsci.2025.112838
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of Al, Ti and annealing temperature on the microstructure, phase structure, and corrosion resistance of the HVOF-sprayed AlxTiyCoCrFeNi coatings were investigated. Annealing treatment at 500 degrees C leads to homogenization within the coating structure as well as a reduction in the inhomogeneity of the chemical potential distribution, so the coatings annealed at 500 degrees C demonstrate outstanding corrosion resistance. However, an increase Al content correlates with a decrease in the passivation film thickness and densification, which ultimately leads to reduced corrosion resistance of the coating. Conversely, an increased trace Ti content enhances the corrosion resistance of high-entropy coatings.
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页数：16
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