Long-Term Corrosion of Copper in Hot and Dry Atmosphere in Turpan, China

被引：19

作者：

Kong, D. C. ^{[1
]}

Dong, C. F. ^{[1
]}

Fang, Y. H. ^{[2
]}

Xiao, K. ^{[1
]}

Guo, C. Y. ^{[2
]}

He, G. ^{[2
]}

Li, X. G. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Ctr Corros & Protect, Key Lab Corros & Protect MOE, Beijing 100083, Peoples R China

[2] Xinjiang Turpan Nat Environm Test Res Ctr, Xinjiang 838200, Turpan, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2016年 / 25卷 / 07期

基金：

中国国家自然科学基金;

关键词：

atmospheric corrosion; copper; electrochemical technology; xps; PATINA; ENVIRONMENT; EVOLUTION; PRODUCTS; BEHAVIOR; EXPOSURE; LAYERS; STEEL; URBAN;

D O I：

10.1007/s11665-016-2114-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Atmospheric exposure tests were conducted on pure copper exposed to the atmosphere for a four-year period in Turpan, China, a typical hot and dry environment. The experiments included weight-loss tests, morphology observations, composition analyses, and electrochemical techniques. The results indicated that the annual corrosion rate of pure copper was approximately 2.24 g/m(2)/year, and an uneven distribution of corrosion products was observed by scanning electron microscopy. This was attributed to the dehydration process that occurred during wet-dry and cold-hot cycles. The corrosion products mainly comprised cuprite (Cu2O) and atacamite (Cu2Cl(OH)(3)). Electrochemical measurements showed that deposits on copper improved its resistance to corrosion, but the protectiveness decreased with increasing temperature.

引用

页码：2977 / 2984

页数：8

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