Galvanic corrosion freshwater

As mentioned above, the environment has a significant effect on whether or not galvanic corrosion will be a problem. For example, carbon steel will corrode rapidly if equal or larger areas of Monel 400 are coupled with it in seawater. Conversely, carbon steel is compatible with Monel 400 in concentrated caustic solutions. Even freshwater can be sufficiently different from seawater couples incompatible in seawater work well in freshwater. For example, copper-steel and aluminum-steet couples are satisfactory for handling... 

Linder, M., and Mattsson, E. (1975). Galvanic corrosion of combinations of metals in freshwater. 7th Scandinavian Corrosion Congr., Trondheim. Royal Norwegian Council for Scientific and Industrial Research, Oslo, pp. 19-35. 

The resistivity of freshwater is between 1000 and 3000 fi cm , depending on its salinity. The resistivity of seawater is only lOft cm . Seawater, therefore, facilitates ionic conductivity. However, for alloys commonly used for marine applications, the two most common forms of corrosion are pitting corrosion and galvanic corrosion. 

E. Ilhan-Sungur, N. Cansever, A. Cotuk. Microbial corrosion of galvanized steel by a freshwater strain of sulphate reducing bacteria (Desulfovibrio sp.). Corrosion Science, Vol. 49, No. 3, pp. 1097-1109,... 

Ilhan-sungur E, Cansever N, Cotuk A (2007) Microbial Corrosion of Galvanized Steel by a Freshwater Strain of Sulphate Reducing Bacteria Desulfovibrio sp.). Corrosion Scimce, vol. 49, no. 3, pp. 1097-1109, March 2007... 

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