The effect of molybdate ion on the corrosion of mild steel in an aerobic medium containing a Pseudomonas biofilm and sulfate reducing bacteria has been investigated. Changes in specimen open circuit potentials correlated with changes in microbial activities. Formation of a microbial film by Pseudomonas on the metal surface could be characterized by changes of phase angle at the lowest frequency; and molybdate functioned as a corrosion inhibitor in the presence of sulfate reducing bacteria.

Subject
Electrochemical impedance spectroscopy, Materials, Electrochemical cells, Metal surfaces, Probes, Iron sulfides, Biofilms, Metals, Bacteria, Corrosion inhibitors, Steel, Pitting, Electrode potential
© 1992 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).
1992
Association for Materials Protection and Performance (AMPP)
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