Abstract
Metallurgical evaluations were performed on samples of Type 310 and aluminized 304 SS after long-term, high temperature exposure in methanol reforming service. The secondary phases were identified and the effectiveness of aluminizing at inhibiting metal dusting was examined. Secondary phases adversely affect the materials service life and repairability. Aluminizing effectively inhibits metal dusting for at least 13-14 years. Metal dusting is most severe in crevices on bare metal.
Subject
Sigma phase,
Materials,
Piping,
Carbides,
Composition,
Precipitates,
Tubes,
Heat,
Metal dusting,
Methanol,
Ferrite,
Wastes,
High temperature
© 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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