Stress corrosion cracking due to external environments has frequently occured in buried cathodically protected onshore pipelines. Most evidence indicates that the responsible environment is a solution of sodium carbonate and sodium bicarbonate which forms beneath disbonded coatings. On the basis of the present knowledge of the stress corrosion cracking failures in onshore pipelines and experiments that have been carried out, the possibility for stress corrosion cracking to occur in subsea pipelines is discussed. It is concluded that the possibility for stress corrosion cracking due to external environments to occur in submarine pipelines can not be excluded. The probability for stress corrosion cracking to occur, however, is considered to be lower than for onshore pipelines.

Subject
Marine environments, Coatings, Cathodic protection, Pipelines, Bicarbonates, Seawater, Acidity, Ion concentrations, Magnesium, Carbon dioxide, Oxygen, Carbonate stress corrosion cracking, Stress corrosion cracking
© 1982 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).
1982
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.