The principle of protecting a metal from corrosion by raising the potential of its surface to a value at which the corrosion product is a protective oxide has been recognized for 20 years.(1) However, industrial application has been slow to develop, probably for two reasons. Firstly, skepticism among design engineers that a costly piece of equipment could be protected from serious corrosion by only a few amperes of DC current and a "black box." Secondly, and probably contributory to the first, the control and electrical side of the protection system was not of high enough standard to guarantee trouble-free operation of anodic protection systems in the field.
© 1975 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).
1975
Association for Materials Protection and Performance (AMPP)
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