For decades, the corrosion inhibitors used in coatings on aluminum structure have contained hexavalent chromium compounds. However, hexavalent chromium is a known human carcinogen. Increasing awareness of this issue has encouraged the development of nonchromated corrosion inhibitors. To date none of the nonchromated inhibitors have been shown to provide overall corrosion resistance as good as hexavalent chromium. In this presentation, we will discuss the performance of these new nonchromated coatings in terms of protecting structural fatigue life from corrosion damage.

Subject
Test methods, Primers, Corrosion fatigue, Coatings, Aircraft, Aluminum, Structures, Corrosion cracking, Stress cracking, Repair, Salt spray corrosion testing, Fatigue, Paints
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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