Fine-tuning corrosion resistance of AlNbTiZrSix alloys in sulfuric acid via silicon incorporation

被引：1

作者：

Zhang, Jiangsheng ^{[1
,2
]}

Luo, Hong ^{[1
,2
]}

Zhao, Qiancheng ^{[1
,2
]}

Wang, Xuefei ^{[1
,2
]}

Cheng, Hongxu ^{[1
,2
]}

Dou, Chaoyang ^{[1
,2
]}

Li, Chengtao ^{[3
]}

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

[3] Suzhou Nucl Power Res Inst 1, Mat Engn Technol Ctr, Suzhou 215004, Jiangsu, Peoples R China

来源：

SURFACES AND INTERFACES | 2025年 / 65卷

基金：

中国国家自然科学基金;

关键词：

High-entropy alloys; Corrosion behavior; Passive film; XPS; BEHAVIOR; SURFACE; STEEL; XPS;

D O I：

10.1016/j.surfin.2025.106530

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Comprehensive electrochemical analysis was conducted to evaluate the corrosion resistance evolution of AlNbTiZrSix (x = 0,0.3,0.6,1.0) high-entropy alloys under ambient sulfuric acid exposure, with systematic variation in Si stoichiometry. Various test methods, including electrochemical tests, X-ray photoelectron spectroscopy, and immersion experiments, were employed. The findings suggested that an augmentation in Si content resulted in a diminished corrosion resistance of the alloy. This mechanism was primarily attributed to the largescale precipitation of Zr5Al3 phase, leading to a reduction in the stability of the passive film. Corrosion predominantly occurred in regions where these precipitate phases were prevalent.

引用

页数：13

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