Abstract
Hydrogen is inevitably formed at corroding metal surfaces in oxygen free environments such wet sour gas or sour crude oil. Part of the hydrogen becomes absorbed into the metal substrate and once into the steel the hydrogen may recombine at phase boundaries and non metallic inclusions to cause blistering or collect at sites of high stresses where it interferes with the integrety of the matrix thereby resulting in a hydrogen embrittlement type of cracking.
Monitoring of the hydrogen activity at the corroding surface can be accomplished using a sealed Devanathan cell with a steel membrane.
The cells are described and their uses illustrated by results from laboratory experiments and simultated full scale service tests.
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
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