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Corrosion behavior of pure copper during initial exposure stage in atmosphere of Shenyang City
An Baigang; Zhang Xueyuan; Han Enhou
Corresponding AuthorAn Baigang(bgan@imr.ac.cn)
2007
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume43Issue:1Pages:77-81
AbstractAtmospheric corrosion of pure copper tinder sheltered and unsheltered exposure conditions during 1 year period in Shenyang atmosphere is studied. Atmospheric corrosion rate of pure copper, composition and protectiveness of corrosion product are different under the different exposure conditions. Corrosion rate of pure copper exposed to unsheltered condition is higher than that exposed to shelter. Especially during the rainy season, the corrosion is accelerated due to the runoff effect of rain. The main corrosion products under the different exposure conditions are Cu2O, but also Cu4SO4(OH)(6)(H2O)-H-. and Cu4SO4(OH)(6) under shelter. However, the effects of runoff and dissolution of rain on the corrosion products delayed the formation process of Cu4SO4(OH)(6)(H2O)-H-., which appeared only after 12 months under unsheltered condition. The thicker and compact corrosion film formed under the unsheltered exposure, which could inhibit the cathodic reaction of copper corrosion effectively, and thus provided a better protectiveness.
Keywordpure copper atmospheric corrosion corrosion rate corrosion product
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000244315000014
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/91686
Collection中国科学院金属研究所
Corresponding AuthorAn Baigang
Affiliation1.Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Peoples R China
2.Univ Sci & Technol Liaoning, Sch Chem Engn, Anshan 114044, Peoples R China
Recommended Citation
GB/T 7714
An Baigang,Zhang Xueyuan,Han Enhou. Corrosion behavior of pure copper during initial exposure stage in atmosphere of Shenyang City[J]. ACTA METALLURGICA SINICA,2007,43(1):77-81.
APA An Baigang,Zhang Xueyuan,&Han Enhou.(2007).Corrosion behavior of pure copper during initial exposure stage in atmosphere of Shenyang City.ACTA METALLURGICA SINICA,43(1),77-81.
MLA An Baigang,et al."Corrosion behavior of pure copper during initial exposure stage in atmosphere of Shenyang City".ACTA METALLURGICA SINICA 43.1(2007):77-81.
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