The early explanations of Cathodic Protection were based on activity associated with ’’positive” or "conventional” current. This current is assumed to involve the flow of positive charges from the positive pole to the negative pole in the metallic circuit. Now, however, the electron theory is the accepted explanation of the mechanism involved in the transfer of electric charges in the metallic circuit. Nevertheless, we still find fundamental explanations of Cathodic Protection phenomena being based on the transfer of positive charges.

Subject
Cathodes, Circuits, Ions, Cathodic protection, Cathodic current, Current measurements, Negative potentials, Electrochemical current, Electrodes, Remote earth, Electrolytes, Electrode potential, Anodes
© 1973 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1973
Association for Materials Protection and Performance (AMPP)
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