The conducting rolls in electrogalvanizing plants suffer corrosion and corrosion-erosion. Electrochemical tests have shown that the corrosion rate in acidic sulfate solutions at 60°C increases according to

Alloy R31233 appears to be the best candidate material for the rolls in acidic sulfate baths due to its low corrosion rate, its high repassivation kinetics and its excellent resistance to wear. Alloys N06200 and N06022 are the second best group of materials for the application.

Subject
Acids, Materials, Corrosion resistant alloys, Corrosion rate, Cathodic potential, Metal surfaces, Nickel based alloys, Repassivation, Sulfates, Oxide films, Rolling, Zinc, Alloys
Keywords:
Conducting Roll, Electrogalvanizing, Corrosion Rate, Repassivation, Wear, Zinc, NAR-A, N06022, N06200, R31233
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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