Multiphase coupling corrosion mechanism of the AlNiZrYCo high-entropy metallic glass coating prepared by plasma spraying

被引：10
作者：
Yuan, Jiachi [1 ,2 ]
Song, Peisong [1 ]
Li, Xu [1 ]
Zhang, Zhibin [1 ]
Jing, Zhiyuan [1 ]
Man, Cheng [3 ]
Jin, Guo [2 ]
Wang, Xiang [2 ]
Liang, Xiubing [1 ]
机构：
[1] Def Innovat Inst, Acad Mil Sci, Beijing 100071, Peoples R China
[2] Harbin Engn Univ, Harbin 150006, Heilongjiang, Peoples R China
[3] Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266404, Shandong, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 235卷
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
High -entropy metallic glasses; Coating; Passive film; Corrosion resistance; ANODIC PASSIVE FILMS; POINT-DEFECT MODEL; BEHAVIOR; FE25CO25NI25(P; INITIATION; IMPEDANCE; ELEMENT; PHASE; GD; CU;
D O I：
10.1016/j.corsci.2024.112217
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The AlNiZrYCo high -entropy metallic glass (HEMG) coating with an amorphous content of 60 % was prepared by supersonic plasma spraying, and its multiphase coupling corrosion mechanism was investigated. Due to the presence of amorphous phase and passivation elements, the formation of a passive film that was abundant in Co elements on the surface of the coating efficiently inhibited Cl - erosion. The existence of crystalline and oxide phases in the coating led to galvanic corrosion, accelerating the corrosion process of the coating.
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页数：13
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