Over recent years with attention being drawn to the toxic and carcinogenic nature of the most common corrosion inhibitor i.e. the chromate ion, considerable research has been directed towards other environmentally acceptable inhibitors. Extensive research at ARL and other laboratories has shown that the salts of rare earth metals are effective inhibitors of the corrosion of aluminium alloys, steel and zinc. This paper reviews experimental studies where rare earth metal salts have been used as inhibitors of various types of corrosion including general, galvanic and crevice corrosion, stress corrosion cracking and corrosion fatigue, and the inhibition mechanisms involved.

Subject
Water, Salts, Corrosion rate, Aluminum, Sodium chloride, Oxide films, Sodium chloride solution, Film formation, Corrosion inhibitors, Steel, Zinc, Aluminum alloys, Stress corrosion cracking
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
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