Consideration is given to the initiation of stress corrosion cracks at metal surfaces where structural features emerge, such as grain boundaries or slip steps, as well as to initiation from pits, crevices or other geometrical discontinuities, in the context of a variety of metal-environment systems. The importance of localized environment composition and potential changes for some, but not all systems is discussed as is the stress concentration associated with pits, fissures and the like. Finally, brief consideration is given to the phenomena of non-propagating cracks and crack coalescence, as matters having a significant influence upon whether or not crack initiation proceeds to propagation.

Subject
Pits, Crack growth, Intergranular stress corrosion cracking, Crack initiation, Transgranular stress corrosion cracking, Crevices, Film formation, Intergranular stress, Steel, Pitting, Slip, Grain boundary, Stress corrosion cracking
© 1988 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).
1988
Association for Materials Protection and Performance (AMPP)
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