The sequence of microfouling formation on several metal surfaces (aluminum, AISI 304 stainless steel, copper, 70/30 copper-nickel and titanium) in contact with polluted harbor sea water is followed through SEM observations. The corrosion behavior of some of these metals (aluminum, 70/30 copper-nickel and stainless steel) is tested in natural and artificial sea water by means of potentiodynamic polarization tests and open circuit potential measurements complemented with SEM observation of the metal attack and EDAX analysis of the corrosion products. The relationship of microbial colonization to corrosion, time, surface finish of the metal samples and the degree of sea water pollution is analysed. According to results obtained the early stages of microfouling are mainly conditioned by the nature of the metal surface and the corrosion products formed on it.

Subject
Scanning electron microscopy, Electric current, Water, Metal surfaces, Aluminum, Corrosion products, Metals, Bacteria, Copper nickel alloys, Immersion, Stainless steel, Corrosion potential, Electrode potential
© 1987 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).
1987
Association for Materials Protection and Performance (AMPP)
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