Abstract
Coating (paint film) disbondment mechanisms are described and discussed in the context of automotive applications related to corrosion processes. Both cold rolled and galvanically protected steel substrates are considered. Emphasis is on cosmetic corrosion induced by physical damage to the organic coating layers. The several mechanisms are described with major focus on discussion of the combined effects of cathodic delamination, mechanical delaminiation and anodic undermining. A generic mechanism is presented which characterizes the propagation of coating disbondment in terms of the combined influence of several distinct processes.
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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