A theoretical and experimental study was conducted to predict and test the corrosion behavior of metallic nitride films on stainless steel. Theoretical prediction of corrosion resistance properties was conducted by the construction and interpretation of Pourbaix Diagrams1 for metallic nitrides. Electrochemical Impedance Spectroscopy (EIS) was then employed to determine whether the predicted corrosion protection in a marine environment was obtained. This study found that in most cases, the use of Pourbaix Diagrams to predict corrosion resistance on 304 stainless steel gave accurate results and is a useful technique for material selection of nitride/substrate combinations for corrosion resistance.

Subject
Circuits, Electrochemical impedance spectroscopy, Protective coatings, Coatings, Anodic protection, Substrates, Oxides, Nitrides, Oxide layers, Pourbaix diagrams, Oxide surfaces, Corrosion protection, Corrosion resistance
Keywords:
metallic nitrides, zirconium nitride, titanium nitride, hafnium nitride, aluminum nitride, impedance spectroscopy, Pourbaix Diagrams
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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