Statistical surveys of the existing vehicle population in the Federal Republic of Germany show that passenger cars should now be designed for a service life of about 15 years. The statistics also indicate that corrosion damage is by far the most common reason for cars having to be scrapped prematurely because they are unsafe. When developing a new car it is therefore important to devote sufficient attention to corrosion protection at the concept and design stages. Corrosion damage, a serious problem for car owners, is caused by a number of electrochemical corrosion processes. With the aid of a model of a corrosion cell, this paper describes various measures and design principles which are capable of preventing the flow of current in the cell and thus the formation of corrosion. Examples of good and bad layouts are used to illustrate design solutions for the optimum application of protective coatings and sealing, and to show the best shapes for components and cavities, the most suitable joining techniques and measures to minimize damage caused by stone chipping.

Subject
Openings, Water, Coatings, Stone, Flanges, Joints, Wax, Plastics, Metals, Chipping damage, Corrosion protection, Stainless steel, Reinforcement
© 1988 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).
1988
Association for Materials Protection and Performance (AMPP)
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