Over the past fifteen years, field dig programs have identified specific soil environments that are particularly potent in promoting near-neutral pH SCC of underground pipelines coated with polyethylene tape. The objectives of the research summarized in this paper were to evaluate the crack propagation behavior of one line pipe steel in the various susceptible soil environments and compare the test results with results of crack propagation tests performed in the standard near-neutral pH SCC environment (NS4).

Subject
Crack growth, Hydrogen permeation, Piping, Electrochemical cells, Corrosion rate, Free corrosion potential, Permeation, Extracts, Steel, Soil, Stress corrosion cracking, Potentiodynamic polarization, Electrolytes
© 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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