Corrosion Behaviour and Protection of Copper and Aluminum by D. Féron

By D. Féron

Copper and aluminum alloys are generic in marine engineering in components akin to pipelines, garage tanks, ships' hulls, and cladding for offshore constructions. Written through a global panel lower than professional editorial course, Corrosion Behaviour and defense of Copper and Aluminium Alloys in Seawater experiences key elements affecting the corrosion and repair lifetime of copper and aluminum alloys within the marine surroundings. The booklet is split into 5 elements, with half 1 reviewing key elements of the corrosion habit of either those alloys. half 2 discusses using copper and copper-nickel alloys in seawater, whereas elements three and four disguise aluminum bronzes and alloys. the ultimate component of the ebook covers using aluminum-based fabrics as anodes for the cathodic safety of marine constructions.

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Extra resources for Corrosion Behaviour and Protection of Copper and Aluminum Alloys in Seawater

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C. Dev, Anticorr. Meth. Mater. 44 (1977) 3, 195–199. 17. A. Schüssler, H. E. Exner, Corr. , 34 (1993) 11, 1793–1802. 18. P. A. Lush, M. J. Carr, Corr. Sci. 19 (1979) 1079–1088. 19. R. J. K. Wood, S. P. Hutton, D. J. Schiffrin, Corr. Sci. 30 (1990) 12, 1177–1201. 20. F. L. Laque, A. H. Tuthill, Hansa 99 (1962) 20, 2077–2086. 21. B. C. Syrett, Corr. Sci. 21 (1981) 3, 187–209. 22. D. J. Schiffrin, S. R. De Sanchez, Corrosion 41 (1985) 1, 31–37. 23. C. Kato, H. W. Pickering, J. E. Castle, J. Electrochem.

Poniewierska et al. [45] investigated welded joints of aluminium alloy similar to 7015–T6 alloy. They stated that in the heat-affected zone (HAZ) intensive exfoliation corrosion had occurred. Low resistance to alkali of aluminium alloys requires a separate discussion. Corrosion risk in seawater in the presence of alkalis occurs only when a construction made of aluminium alloys is cathodically protected; meaning that, at sites adjacent to anodes, alkalization of seawater can occur. Aballe et al.

70/30 cupro–nickel showed no observable effect. Biocorrosion of copper alloys in sea water was described by de Saravia et al. [31]. Modifications in the metal/solution interface properties of Cu/Ni alloys can be induced by microbial attachment: ∑ through the generation of diffusional barriers; Corrosion behaviour of non-ferrous alloys in seawater 11 ∑ by changing the structural characteristic of the corrosion products beneath bacterial colonies; ∑ through the formation of layer-by-layer structures in which biological films are mixed with corrosion products and alter the adhesion of the latter; ∑ through the production of aggressive metabolites, which reduce the protective characteristics of the oxide layer.

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