Countries that operate commercial nuclear power plants plan to dispose the spent fuel in metallic containers located in underground geologically stable repositories. The materials being studied for the fabrication of the containers include carbon steel, stainless steel, copper, titanium and nickel alloys. The aim of this paper is to review research data on candidate materials regarding their resistance to environmentally assisted cracking (EAC) or stress corrosion cracking (SCC) under simulated repository conditions. In general, it is concluded that the environments in the geologic formations are non-aggressive and that the studied metals will be resistant to environmental cracking under the planned emplacement conditions.

Subject
Environmental cracking, Water, Materials, Containment, Nuclear waste, Mechanical failure, Oxygen, Carbon steel, Copper, Titanium alloys, Chlorides, Corrosion potential, Stress corrosion cracking
Keywords:
nuclear waste materials, stress corrosion cracking, carbon steel, copper, nickel alloys, titanium alloys
© 2013 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).
2013
Association for Materials Protection and Performance (AMPP)
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