Author： Fraunhofer J.A. von Gromoboy T.S. de
Publisher： Emerald Group Publishing Ltd
ISSN： 0003-5599
Source： Anti-Corrosion Methods and Materials, Vol.16, Iss.4, 1993-12, pp. : 16-20
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Abstract
Cathodic protection by galvanic or impressed current techniques is probably the most favoured method of obviating the corrosion of buried and immersed metals. The theoretical principles and the economics involved in such protection are well established now and have been the subject of numerous papers, monographs and reviews. Cathodic protection is, however, still far from being an infallible method of corrosion prevention primarily because (a) the cathodic protection conditions necessarily change with the environment, (b) complete corrosion protection is rarely achieved in practice (see below), and (c) corrosion of an apparently protected structure may occur through the presence of stray currents
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