Effect of carbon addition on the microstructure and corrosion resistance of the CoCrFeNi high-entropy alloy

被引：4
|
作者：
Wei, Xueming [1 ]
Zhang, Lijun [1 ]
Zhang, Fengyi [1 ]
Zhang, Chunzhi [1 ]
Jia, Qixiang [2 ]
Sun, Kai [3 ]
Duan, Dongtao [3 ]
Jiang, Hui [4 ]
Li, Gong [5 ]
机构：
[1] Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Shandong, Peoples R China
[2] Shandong Univ Sci & Technol, Coll Intelligent Equipment, Tai An 271001, Shandong, Peoples R China
[3] Jining Luoling New Mineral Prod Co LTD, Jining 273516, Shandong, Peoples R China
[4] Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao 266590, Shandong, Peoples R China
[5] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 231卷
基金：
中国国家自然科学基金;
关键词：
High -entropy alloy; Carbon atom; Microstructure; Passive film; DUPLEX STAINLESS-STEEL; X-RAY-DIFFRACTION; MECHANICAL-PROPERTIES; PASSIVATION BEHAVIOR; FILM; 304-STAINLESS-STEEL; TEMPERATURE; CHEMISTRY; DIFFUSION; ALUMINUM;
D O I：
10.1016/j.corsci.2024.111965
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Interstitial atom doping can enhance mechanical properties and phase structure, but its impact on corrosion resistance is not well -researched. This study investigated the influence of carbon -doping on the microstructure and corrosion resistance of CoCrFeNi high -entropy alloys. The results show that alloy doped with a moderate carbon content (C0.3 alloy) have the best corrosion resistance in 3.5 wt% NaCl solution, while alloys with carbides (M7C3) show poor corrosion resistance. The stability, semiconductive property, and composition of the passivation films were characterized to reveal the corrosion mechanisms. These findings provide a theoretical basis for the development and application of carbon -doped high -entropy alloys.
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页数：15
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