Abstract
Very low concentrations of thiosulfate ions can dramatically enhance pitting corrosion of austenitic stainless steels in natural waters or dilute process streams. Pitting can occur, even in chloride-free environments, provided another anion like sulfate is available to support acidification of the pit. Thiosulfate can also enhance, but only to a limited extent, the propagation of crevice corrosion. In this review, the mechanistic aspects and practical consequences of thiosulfate corrosion are summarized.
Subject
Anions,
Pits,
Sulfur,
Water,
Sulfates,
Machinery,
Acidity,
Thiosulfate,
Crevice corrosion,
Corrosion inhibitors,
Pitting,
Stainless steel,
Chlorides
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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