Corrosion accounts for a very large percentage of the failures in chemical plants. Collins and Monack (1) have published data showing corrosion accounted for 55.2% of the failures that occurred at DuPont over the four years 1968-1971. General corrosion accounted for 27.5% of the corrosion failures followed by stress corrosion cracking at 23.7%, pitting at 14.3% and intergranular corrosion at 10.1%. There are a number of techniques that are capable of monitoring general corrosion (2-16) and can be applied to process streams. A number of techniques have been reported that are capable of monitoring nonuniform corrosion in a laboratory (17-24). Harrell, Martin and Gaydos (25) have reported a potentiodynamic method of determining a pitting rate of mild steel in an oil well pipe system.

Subject
Materials, Corrosion rate, Nickel based alloys, Electrochemical noise, Instrumentation, Linear polarization, Oscillation, Metals, Steel, Corrosion probes, Pitting, Electrodes, Electrode potential
© 1977 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).
1977
Association for Materials Protection and Performance (AMPP)
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