Studies on the corrosion of Zircaloys in high temperature aqueous environments has received increasing attention in the recent years. The present investigation shows that Zircaloy undergoes dynamic active/passive transitions at lower temperatures, and the transitions disappear at 289°C in the presence of ~ 250 ppb O2. However, the active/ passive transitions reappear at lower oxygen contents at 289°C. It is postulated that stable passivity of Zircaloys in high temperature aqueous environments requires a high dissolved oxygen content

Subject
Decomposition potential, Steel surfaces, Precipitates, Oxide formation, Oxide films, Polarization curves, Solutions, Oxide surfaces, Film formation, Anodic current, Oxygen, Dissolved oxygen, Electrode potential
© 1993 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).
1993
Association for Materials Protection and Performance (AMPP)
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