Influence of impurity content on corrosion behavior of Al-Zn-Mg-Cu alloys in a tropical marine atmospheric environment

被引：3

作者：

Xue, Wei ^{[1
]}

Wang, Yixuan ^{[2
]}

Wu, Shuai ^{[3
]}

Zhang, Bowei ^{[1
]}

Zhang, Zequn ^{[1
]}

Zhuo, Xianqin ^{[4
]}

Zuo, Pengcheng ^{[1
]}

Lu, Shuai ^{[1
]}

Xia, Jiuyang ^{[1
]}

Li, Xiaogang ^{[1
]}

Wu, Junsheng ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Tianjin Coll, Tianjin 301830, Peoples R China

[3] Southwest Inst Technol & Engn, Chongqing 400039, Peoples R China

[4] Hainan Int Commercial Aerosp Launch Co Ltd, Wenchang 571300, Peoples R China

来源：

CORROSION SCIENCE | 2024年 / 237卷

基金：

中国国家自然科学基金;

关键词：

Al-Zn-Mg-Cu alloy (A); Impurity contents (C); Precipitates (C); Corrosion behavior (C); Corrosion mechanism (C); ALUMINUM-ALLOY; MECHANICAL-PROPERTIES; LOCALIZED CORROSION; PITTING CORROSION; MICROSTRUCTURE; PROPAGATION; INITIATION; EVOLUTION;

D O I：

10.1016/j.corsci.2024.112319

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of impurity content on the corrosion behavior of Al-Zn-Mg-Cu alloys in a tropical marine atmospheric environment was systematically investigated. Combined with experimental measurements and theoretical calculations, it has been elaborated that the Volta potential difference is the main reason for the localized corrosion. The composition-property correlation has been established between the impurity contents, the type, size, and quantity of precipitates, and the corrosion behavior. The effects of impurity contents on the volume fraction of precipitates and corrosion parameters such as corrosion rate and average pit depth have been quantified, offering quantitative guidance to develop novel Al-Zn-Mg-Cu alloys.

引用

页数：12

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