Abstract
This work is dedicated to the study of the performance of thermally sprayed coatings applied on uncooled components installed in the high temperature zone of a 300 MW boiler. The environment in the boiler is highly corrosive because of the burning of heavy fuel oil with high contents of vanadium, sodium and sulphur. The additive feeder components coated by thermal spraying were exposed to a gas temperature of 1100°C (2037°F) during 3240 hours approximately. A nickel-chromium/silicon-iron two layer based coating developed the best performance. Details of the microstructure in the interfaces between the coating and the corrosive environment and of the coating and the base metal are discussed.
© 1995 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).
1995
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.
