Abstract
Interference mitigation can be a difficult subject to teach. This paper describes two training aids that can be used in the field and in the classroom to explain cathodic interference. One aid uses a short length of aluminum foil, representing the interfered structure, which is placed in the path of a stray current. The corrosive effect of interference is manifested by the destruction of the anodic portion of the foil. The second aid is a miniature pipeline crossing simulator with which pipe to soil potential changes under the influence of interference can be demonstrated. Mitigation using both natural potential and no-swing bonds can be demonstrated.
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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