Centrifugal compressors are widely installed and operated in different industries with corrosive environments. The compressor impellers experience different corrosive failures depending on the operating environment. After a series of studies on the stress corrosion and corrosion fatigue failures of impellers, a practical and complete procedure has been developed. The intended result of this procedure is elimination and prevention of failures. This paper presents this effective procedure along with three case study and measurement applications. The procedure combines failure root causes identification steps in both metallurgical and mechanical fields. Besides emphasizing the mechanical verification on the metallurgical inspection results, the procedure also provides some very practical solutions.

Subject
Corrosion failures, Corrosion fatigue, Coatings, Materials, Geometry, Inspection, Corrosion cracking, Failure analysis, Stress, Vibration, Pitting, Deposit corrosion, Stainless steel
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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