The results of this study show that the mechanical properties of cold-worked, corrosion-resistant alloys (CRA’s) are temperature dependent. The yield and ultimate tensile strengths in tension and in compression decrease as the temperature increases. The data also show that the properties are dependent upon orientation within the tube wall; i.e., CRA materials exhibit a degree of mechanical anisotropy. The extent of the anisotropy is dependent upon the amount of cold work and the processing history of the tube. The susceptibility to stress-corrosion cracking was also found to depend upon the grain orientation developed from cold working. The significance of these results for the design of downhole tubulars for deep, sour-gas wells is discussed.

Subject
Materials, Manufacturing, Yield stress, Compression, Tubes, Walls, Mechanical properties, Constants, Risk reduction, Alloys, Grain, Yield strength, Stress corrosion cracking
Keywords:
SCC, anisotropy, corrosion-resistant alloys, cold worked, Bauschinger effect, yield criteria, texture
© 1992 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).
1992
Association for Materials Protection and Performance (AMPP)
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