Different types of inhibition mechanisms are classified as interface and interphase inhibition. Interface inhibition is caused by specific adsorption of the inhibitor at the substrate surface forming a 2-D adsorbate layer sometimes of well defined structure. This type can be subdivided into geometric blocking, desactivating and reactive coverages. Interphase inhibition is caused by a 3-D protective layer between the substrate and the bulk of the electrolyte.

In this paper, experimental de and ac results are presented to illustrate the interphase inhibition and the influences of surface inhomogeneities on localized corrosion processes.

Subject
Pits, Barrier layers, Substrates, Passive films, Oxide layers, Impedance, Substrate surfaces, Interfaces, Corrosion modeling, Corrosion inhibitors, Surface layers, Corrosion potential, Electrode potential
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
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