Atmospheric corrosion of T2 copper and H62 brass exposed in an urban environment

被引：11

作者：

Wang, Xuankai ^{[1
]}

Su, Hui ^{[1
]}

Xie, Yi ^{[2
]}

Wang, Jun ^{[2
]}

Feng, Chao ^{[2
]}

Li, Dengke ^{[3
]}

Wu, Tangqing ^{[1
]}

机构：

[1] Xiangtan Univ, Sch Mat Sci & Engn, Xiangtan 411105, Peoples R China

[2] State Grid Hunan Elect Power Co Ltd Res Inst, Changsha 410007, Peoples R China

[3] Changsha Normal Univ, Sch Informat Sci & Engn, Changsha 410199, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2023年 / 299卷

基金：

中国国家自然科学基金;

关键词：

Copper; Brass; Atmospheric corrosion; XPS; SEM; EIS; ELECTRONIC-STRUCTURE; WEATHERING STEELS; XPS; AUGER; SPECTROSCOPY;

D O I：

10.1016/j.matchemphys.2023.127487

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, corrosion behavior and mechanism of H62 brass and T2 copper in an urban atmosphere were studied using weight loss, SEM/EDS, electrochemical measurements, XRD and XPS. The results show that the main corrosion products of the copper are Cu2O and CuO, with a small quantity of Cu2Cl(OH)3 in it, while additional Zn-containing compounds, such as ZnCl, ZnO and ZnS, appear in the corrosion product of the brass. The corrosion rate of the brass decreases with time, while that of the copper increases during the first 12 month, and then decreases. The corrosion resistance of the brass is better than the copper in the urban atmosphere. The results of the study provides scientific data support for material selection and life prediction of the equipment used in urban environments.

引用

页数：16

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