HF-Modified austenitic stainless steel cast piping is utilized in hydro-processing units. Ultrasonic examination of HF-Modified material is difficult due to it’s inherent material properties. This paper outlines the results of trials conducted on test samples containing artificial flaws in the form of EDM notches. Use of manually manipulated Time Of Flight Diffraction (TOFD) ultrasonics has demonstrated the effectiveness of the technique to detect and size ID connected notches.

Subject
External surfaces, Test methods, Pipe surfaces, Materials, Piping, Notches, Waves, Corrosion detection, Transducers, Flaws, Internal surfaces, Caustic stress corrosion cracking, Cracks
Keywords:
Examination, HF-Modified, Hydro-Processing, Time of Flight Diffraction
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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