Recently, in oil-and-gas production and refinery industries, the use of titanium has been increasing due to its good corrosion resistance and light-weight characteristics in order to obtain the overall cost benefit. However, under severe environments encountered recently, improvement of corrosion resistance of Ti has been known to be necessary.

Corrosion behavior of small addition of Pd to Ti and Ti alloys in various simulated environments containing high Cl- and/or H2S has been studied comparing with various conventional alloys. Pd additions markedly improved resistance to crevice corrosion and stress corrosion, while resistance to hydrogen embritllement appeared to be dependent on alloy types rather than the Pd addition.

Utilizing the quantitative knowledge of the improving effect of a Pd addition, various grades of new titanium alloys have been developed.

Subject
Acids, Test methods, Materials, Corrosion resistant alloys, Corrosion rate, Nickel based alloys, Molybdenum alloys, Corrosion testing, Stress, Crevice corrosion, Corrosion resistance, Titanium alloys, Stress corrosion cracking
Keywords:
titanium, titanium alloy, stress corrosion cracking, localized corrosion, acid corrosion resistance, hydrogen embrittlement
© 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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