IR voltage is a troublesome problem in the use of electrochemical techniques for corrosion monitoring. This is particularly true for atmospheric corrosion monitoring since the corrosive environment is a thin condensed film which has high resistance due to its thinness. A finite element method for calculating IR voltage in corrosion cells is introduced in this paper. The IR voltage is calculated using numerical solutions of the governing partial differential equations for corrosion cells. The method is explained and the IR voltage of a hypothetical atmospheric corrosion probe is calculated as an example.

Subject
Working electrodes, Atmospheric corrosion, Voltage, Corrosion rate, Corrosion cells, Interfaces, Corrosion probes, Corrosion resistance, Elements, Polarization, Counter electrodes, Electrolytes, Electrode potential
© 1981 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).
1981
Association for Materials Protection and Performance (AMPP)
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