It is well known that sulfide stress corrosion (SSCC) and hydrogen induced cracking (HIC) or blistering could take place in the steel in wet hydrogen sulfide environment. It is said that SSCC could occur in relatively high strength steel having the hardness 20 to 22 in Rockwell C scale. [HR C > 20~ 22]1 ) Accordingly, HIC or blistering is considered to be important problem in line pipe steel which is classified into relatively soft steel. Several accidental defects and failures due to HIC were reported on line-pipe used for sour gas or sour oil transportation.2)~ 5) The failure due to HIC arises from through thickness crack in step-wise manner.

Subject
Steel structures, Hydrogen induced cracking, Marine environments, Water, Materials, Piping, Hydrogen concentration, Sour environments, Crack initiation, Ingots, Steel, Scale, Hydrophobic interaction chromatography
© 1978 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).
1978
Association for Materials Protection and Performance (AMPP)
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