Metallurgical analyses of pipeline failures are an integral part of good integrity management programs. Failure analyses are used not only in establishing the metallurgical causes of the failures, but also in identifying potential time dependent threats, establishing damage rates, and validating reassessment intervals. Analysis of un-failed pipe containing anomalies can be used to improve the sentencing and sizing of anomalies detected by in-line inspection. This paper provides several case histories in which metallurgical failure analyses were used to enhance integrity management programs.

Subject
Scanning electron microscopy, Pipe surfaces, Seams, Piping, Walls, Leaks, Pipelines, Failure analysis, Flaws, Mechanical failure, Defects, Pipe sections, Integrity management
Keywords:
internal/external corrosion, seam weld defect, hydrotest failures, integrity, case history
© 2007 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).
2007
Association for Materials Protection and Performance (AMPP)
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