In the past 5 years, Conventional Non-Destructive Examination (NDE) for High-Temperature Hydrogen Attack (HTHA) has been improved with remarkable success. This technology, combined with emerging Fitness-for-Service (FFS) methodologies, has been used in the evaluation of equipment in HTHA service with a higher level of confidence. Some of these evaluations have led to a systematic approach to continued operation, limited service, or retirement decisions not possible just 5 years ago. This paper will highlight some of the ongoing advances of the HTHA Joint Industry Project (JIP) to date and provide a preview into upcoming developments in the NDE and FFS codes. Some case studies will be presented along with recent advances in laboratory methods for HTHA prediction.

Subject
High temperature hydrogen attack, Nondestructive testing, Materials, Hydrogen attack, Solubility, Inspection, Partial pressures, Stress, Methane, Creep, Carbon steel, Damage, Hydrogen
Keywords:
High-Temperature Hydrogen Attack, HTHA, Nelson Curve, Carbon Steel, C-0.5Mo, API RP 941, decarburization, NDT, NDE, non-destructive examination
© 2018 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).
2018
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.