Microstructure and corrosion resistance properties of (FeCoNi)86Al7Ti7 high-entropy alloy via different aging time

被引：16
作者：
Cheng, Hongxu [1 ,2 ]
Luo, Hong [1 ,2 ]
Wang, Xuefei [1 ,2 ]
Li, Xiaogang [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China
[2] Minist Educ MOE, Key Lab Corros & Protect, Beijing 100083, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 226卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloy; Corrosion behavior; Passive film; Microstructure; FE-NI-AL; DUPLEX STAINLESS-STEEL; PASSIVE FILM FORMATION; SEMICONDUCTIVE BEHAVIOR; CREEP RESISTANCE; HIGH-STRENGTH; CR; MO; TEMPERATURE; POLARIZATION;
D O I：
10.1016/j.corsci.2023.111670
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of heat treatment processes with different aging times on the corrosion behavior and passive film properties of the (FeCoNi)86Al7Ti7 high-entropy alloy were investigated. The study shows that aging time has a significant effect on the grain characteristics and L21 phase distribution. A suitable aging time optimizes the compositional segregation between the face-centered cubic and L21 phases. Samples aged for 1 h exhibit the best corrosion resistance, which can be attributed to the homogeneity of the composition and the quality of the passive film. Ti oxides play a major role in the passive film.
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页数：13
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