A. In earlier exploratory researches on the mechanism of hydrogen entry into iron and steel, these as basic preludes to the cracking of high-strength steels, we examined how aqueous H2S solutions and how electrochemically-produced H3AS traces in aqueous solutions react upon iron surfaces. Our present experiments, with improved physical apparatus, continue these hydrogen input measurements upon liquid ammonia systems, which were systematically varied in their chemistry and in their electrochemistry. There are two fundamental reasons for pursuing these problems: one of these is to understand better the chemistry and physical properties of gaseous and liquid ammonia systems. The second reason is to know how liquid ammonia behaves relative to carbon and low-alloy steel which is the most common material of construction for tanks, ships, and pipelines. Our primary interest herein was for a basic understanding of iron-ammonia interactions and hydrogen-iron interactions.

Subject
Water, Hydrogen permeation, Ions, Probes, Reactors, Gas pressure, Ammonia, Vapors, Liquids, Steel, Oxygen, Stress corrosion cracking, Hydrogen
© 1971 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).
1971
Association for Materials Protection and Performance (AMPP)
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