A survey of corrosion and cracking information relating to boiler feedwater deaerators is presented. Possible corrosion, cracking and rupture mechanisms are reviewed.

Systematic studies of corrosion and cracking mechanisms in boiler feedwater deaerators have not been performed. Requirements include da/dn versus delta K studies for a variety of deaerator steels, realistic stress and strain ranges from thermal and pressure cycling, and a conservative model for predicting rupture of deaerators as a function of defect size.

Subject
Crack growth, Corrosion fatigue, Materials, Corrosion cracking, Stress cracking, Thermal stress, Stress, Feedwater, Film formation, Steel, Boilers, Magnetite, Deaerators
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
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