Abstract
Electrochemical Impedance Spectroscopy (EIS) was used to evaluate the performance of oilfield immersion coatings. The performance evaluation was conducted in aerated 3% sodium chloride solution by inducing a tiny pinhole onto the coating to accelerate the test. The results demonstrate that EIS is a feasible method for evaluating oilfield immersion coatings, because it can differentiate the performance among coatings and gives results which are in good agreement with conventional immersion tests. It was found that the frequency at maximum phase angle and the break point frequency are system-specific parameters and may be used as criteria for quality control of the coatings and to predict long-term coating performance.
© 1994 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).
1994
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.
