Crevice corrosion testing requires an appreciation of many interrelated factors. Two case histories are presented to demonstrate the effects of certain test variables on material performance. One of our investigations, for example, recreated conditions reported by other researchers and demonstrated that attack on a stainless steel propeller shaft could also have occurred by crevice corrosion alone rather than exclusively by stray current. The second case deals with the interpretation of test results from several studies in natural and synthetic seawater environments and seawater treated to mitigate biofilm formation.

Subject
Marine environments, Water, Materials, Corrosion initiation, Natural seawater, Seawater, Crevices, Crevice corrosion, Stray current, Stainless steel, Corrosion potential, Occluded cells, Concentration cells
Keywords:
stainless steels, crevice corrosion, stray current, biofilms, seawater, synthetic seawater, pasteurized saline river water, initiation, propagation, geometrical
© 1996 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).
1996
Association for Materials Protection and Performance (AMPP)
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