Stagnant water frequently results in corrosion mechanisms which are very different from those produced by flowing water from the same source. Flowing water is characterized by dissolved constituents which are relatively constant in composition, whereas the chemical composition of stagnant water changes due to equilibrium processes. Some of the more common stagnant water corrosion problems result from: fouling by macro-organisms or sediment, microbiologically-influenced corrosion (MIC), periodic introduction of soluble gases, and under-deposit corrosion.

Subject
Acids, Pits, Water, Piping, Iron oxide, Corrosion products, Film formation, Metals, Bacteria, Steel, Pitting, Corrosion protection, Deposit corrosion
Keywords:
stagnant, low flow, microbiologically influenced corrosion (MIC), under-deposit corrosion, differential concentration cell, acid producing bacteria, sulfate reducing bacteria
© 1993 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).
1993
Association for Materials Protection and Performance (AMPP)
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