Abstract
The long term current demand can be useful when choosing the potential and determining the current output for a cathodic protection system. The current demand of various copper based, aluminum, titanium, stainless, monel, and mild steel alloys at potentials between -0.6V and -1.1V (vs Ag/AgCl) has been monitored for over 800 days. The lowest current densities for most alloys were obtained at -1.0V.
The influence of factors such as oxygen level, fouling, and the formation of cathodic film on the current demand have been determined. This investigation was carried out on a state-of-the- art potentiostat designed in-house. This potentiostat can monitor the current demand of up to ten specimens at each of six potentials.
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
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