Modern electrochemical corrosion monitoring methods have been employed successfully for several years to investigate aqueous corrosion in power plant environments. In a recent study conducted by Westinghouse, similar equipment was used to evaluate high temperature corrosion behavior. Electrochemical probes were located in the radiant section and superheater inlet of a steam generator unit to investigate corrosion activity caused by changes in the combustion environment. The results obtained are encouraging and typical data are presented to illustrate steady state and unstable corrosion behavior during normal plant operations. The indications are that modern instrumentation can offer a considerable opportunity to optimize materials selection and improve reliability, safety and resource utilization.

Subject
Materials, Corrosion rate, Electrochemical noise, Tubes, Corrosion activity, Instrumentation, Corrosion attacks, Electrochemical data, Equipment, Boilers, Corrosion probes, Corrosion resistance, Deposit corrosion
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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