Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/5616
Título: Electrochemical studies on the corrosion of brass in seawater under anaerobic conditions
Autor: Bastos, M.C.
Proença, L.F.A.
Neto, M.M.M.
Fonseca, I.T.E.
Palavras-chave: brass corrosion
natural seawater
synthetic seawater
anaerobic conditions
cyclic voltammetry
Data: 2008
Editora: Springer
Citação: "Journal of Solid State Electrochemistry". ISSN 1432-8488. 12 (2008) 121-131
Resumo: This paper reports an electrochemical study on the corrosion of brass in deoxygenated nonbuffered and buffered natural and artificial seawater solutions under anaerobic conditions. Cyclic voltammograms of brass and copper in natural seawater (NSW) and artificial seawater (ASW) were obtained in the passive and transpassive potential regions. The corrosion resistance of brass in natural and artificial seawater was evaluated, and opencircuit potentials were recorded over exposure period of 1 week. Brass samples from 3-month exposures in deoxygenated nonbuffered ASW and NSW, under opencircuit potential, have been imaged by scanning electron microscopy, and the elemental composition of the corrosion products was obtained by energy dispersive spectrometry analysis. It has been concluded that, under anaerobic conditions, the aggressivity of NSW is higher, with brass being less resistant to corrosion than copper, and that buffer contributes to reduce the aggressivity of both media
Peer review: yes
URI: http://hdl.handle.net/10400.5/5616
ISSN: 1432-8488
Aparece nas colecções:DQAA - Artigos de Revistas

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