This paper presents a review of studies on volatile corrosion inhibitors (VCIs) for humid atmospheres. Emphasis is on the mechanisms of interaction of VCIs with the atmosphere and on methods for quantitative estimation of the volatility of organic compounds. The possibility of predicting the volatility of corrosion inhibitors based on their chemical structure and the scale of ξR-constants of substituents is analyzed. Corrosion initiation by mass and heat transfer in systems protected by VCIs is discussed. The importance of chemisorption in the efficiency of metal protection by VCIs and especially in its post-treatment effect is outlined. The energy of adsorption of lower amines by oxidized iron surface and the irreversibility of VCI adsorption are considered.

Subject
Water, Metal surfaces, Adsorption, Iron, Volatile corrosion inhibitors, Volatility, Vapors, Liquids, Amines, Metals, Heat, Corrosion inhibitors, Corrosion protection
Keywords:
volatile corrosion inhibitors, vapor formation, vapor pressure, LFER principle, simulation of metal protection, corrosion initiation by mass and heat transfer, irreversibility of adsorption
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.