There are a variety of on-line corrosion monitoring technologies, and the most widely used methods in the field are the electrical resistance (ER) and linear polarization resistance (LPR) techniques. New developments in electronics in these areas have greatly improved the ease of obtaining continuous on-line real time measurements in process plants. In addition, data logging systems have added the ability to obtain continuous corrosion history for display on a P.C. These systems have permitted greater visibility of corrosion dynamics that enable improved corrosion management.

In the area of LPR technology, aspects of electrochemical impedance spectroscopy (EIS) have migrated from the laboratory to the field to improve compensation for solution resistance. Electrochemical noise, although thought to be new, has been incorporated into some LPR systems in the field for over twenty years. A review of some conclusions on its use is given.

Subject
Electrochemical impedance spectroscopy, Corrosion rate, Probes, Electrochemical noise, Metal loss, Current densities, Corrosion data, Corrosion probes, Corrosion monitoring, Upset, Linear polarization resistance, Electrodes, Electrode potential
Keywords:
On-line corrosion monitoring, Electrical resistance corrosion monitoring, Linear polarization resistance corrosion monitoring, electrochemical corrosion monitoring, electrochemical noise
© 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)
You do not currently have access to this content.