The current demand of coated steel hulls has been monitored to determine the influence of temperature, salinity, oxygen level, alkalinity and calcium carbonate concentrations. It was found that current demand of ships could be reduced as much as 70% if a vessel was operating in tropical waters rather than temperate. This reduction in current demand was maintained when the vessels returned to temperate water but was lost after passing through fresh or polluted water.

Subject
Electric current, Films, Water, Cathodic protection, Calcium carbonate, Cathodic current, Fresh water, Hull, Salinity, Film formation, Marine vessels, Oxygen, Risk reduction
© 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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