Commercial grades of Zircadyne zirconium alloys are being investigated for deep sour gas well applications. Test methods include autoclave, constant strain, sustained load and constant strain rate techniques. Test results indicate that these alloys have excellent resistance to general corrosion and to stress corrosion cracking in sulfide environments. This excellent performance is attributed to zirconium's high affinity to oxygen and low affinity to sulfur. Hydrogen sulfide seems to play a neutral role in the corrosion reactions of zirconium. For practical service, the high strength requirements can be achieved by cladding methods.

Subject
Hydrogen sulfide, Strain rate, Materials, Zirconium, Stress cracking, Constants, Sodium chloride solution, U bends, Specimen preparation, Zirconium alloys, Corrosion resistance, Sulfide stress cracking, Stress corrosion cracking
© 1982 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).
1982
Association for Materials Protection and Performance (AMPP)
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