Atmospheric Corrosion of Copper Exposed in a Simulated Coastal-Industrial Atmosphere

被引：1

作者：

Chen Pan ^{[1
]}

Wangyan Lv ^{[2
]}

Zhenyao Wang ^{[1
]}

Wei Su ^{[2
]}

Chuan Wang ^{[1
]}

Shinian Liu ^{[2
]}

机构：

[1] Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences

[2] Electric Power Research Institute, Guangdong Power Grid Corporation

来源：

JournalofMaterialsScience&Technology | 2017年 / 33卷 / 06期

关键词：

Copper; Atmospheric corrosion; SEM; EIS;

D O I：

暂无

中图分类号：

TG172.3 [大气腐蚀、气体腐蚀];

学科分类号：

080503 ;

摘要：

The corrosion behavior of copper exposed in a simulated coastal-industrial atmosphere has been investigated using weight loss measurement, scanning electron microscopy, X-ray diffraction, potentiodynamic polarization and in-situ electrochemical impedance spectroscopy（EIS） with micro-distance electrodes.The results show that corrosion kinetics follows the empirical equation D = Atn. The main corrosion products are composed of Cu2O, Cu2Cl（OH）3 and Cu4Cl2（OH）6. A two-layer structure comprising a loose outer layer and a compact inner layer forms the corrosion products during corrosion process. SO2 has been found to promote the formation of Cu4Cl2（OH）6.

引用

页码：587 / 595

页数：9

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