Corrosion and passivation behavior of FeCoCrNiNbx eutectic high-entropy alloys in H2SO4 solution

被引：9
作者：
Liu, Chang [1 ,2 ,3 ]
Gao, Yu [1 ]
Chong, Kai [1 ]
Zhang, Yongang [1 ]
Zou, Yong [1 ,4 ]
Guo, Fuqiang [1 ]
机构：
[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formin, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[4] Shandong Univ, Shandong Engn & Technol Res Ctr Modern Welding, Jinan 250061, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2023年 / 27卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloy; Passivation behavior; Corrosion resistance; DUPLEX STAINLESS-STEEL; ELECTROCHEMICAL-BEHAVIOR; SULFURIC-ACID; PITTING CORROSION; FILM FORMATION; RESISTANCE; MOLYBDENUM; FE; CR; SURFACE;
D O I：
10.1016/j.jmrt.2023.10.313
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The bilayer structure passive films were formed on FeCoCrNiNbx alloy surfaces in 0.5 M H2SO4 solution. The inner film was denser and more protective. The high Cr/Nb ratio would facilitate the passivation of FeCoCrNiNbx alloys and the formation of a thicker passive film on the alloy surface. The protective ability of the passive film was determined by the structure, composition, and thickness of the passive film, while semiconductor charac-teristics of the passive film could only contribute to the improvement of the protective ability of the passive film, but could not directly determine the protective ability of the passive film.
引用
收藏
页码：4962 / 4977
页数：16
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