This paper documents several successful applications where electroless nickel (EN) coatings were used to solve corrosion related problems in the chemical and transportation industry. Most of the applications involve corrosion, erosion, and wear simultaneously which demonstrates the unusual ability of EN coatings to solve complex compatibility problems.

Test results show that properly selected EN coatings offer lower corrosion rates than alloy 200 under both static and velocity conditions in each of the alkaline environments evaluated. Electroless nickel was substituted for the more expensive alloy under each circumstance. The coating also offers improved corrosion resistance and product purity over stainless steel and mild steel alloys. Electroless nickel coatings were found to be an economic improvement over most materials when compared using "Equivalent Annual Cost" based on NACE standard RP-02-72.

Subject
Nickel coatings, Costs, Coatings, Materials, Plating, Corrosion rate, Valves, Nickel based alloys, Phosphorus, Steel, Corrosion resistance, Stainless steel, Electroless nickel
© 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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