A multi-metal corrosion inhibitor was tested in potassium formate solutions by electrochemical and immersion testing methods. The results showed that the inhibitor could provide full protection on mild steel, aluminum, copper and brass, and good protection on soft solder. For cast iron, a secondary inhibitor would be needed to provide protection of pitting and crevice corrosion.

Subject
Test methods, Corrosion rate, Formates, Aluminum, Potassium, Solutions, Metals, Corrosion inhibitors, Steel, Cast iron, Immersion, Corrosion protection, Copper
Keywords:
corrosion, corrosion inhibitor, potassium formate, heat transfer fluid
© 2009 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).
2009
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.