Accession Number : ADA336906
Title : Inhibition of Microbiologically Influenced Corrosion.
Corporate Author : NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
Personal Author(s) : Natishan, P. M. ; Jones-Meehan, J. ; Loeb, G. I. ; Gray, N. ; Little, B. J.
PDF Url : ADA336906
Report Date : NOV 1997
Pagination or Media Count : 14
Abstract : Two areas of work designed to provide a better understanding on the nature of microbial colonization of surfaces and microbiologically influenced corrosion are discussed. The first approach examined a mechanical sensing model to describe microbial colonization. Results obtained alter the exposure of a group polydimethylsiloxane polymers to an estuary environment provide support for this model. The second approach sought to determine it there is a relationship between microbial colonization' of certain metallic substrates and corrosion. Exposure of zirconium, chromium, niobium, tantalum. molybdenum. tungsten and 4340 steel to Postgate medium with 2.5% NaCI and sultate reducing bacteria (SRB) resulted in biofilms being formed on all samples. In the case of the zirconium, chromium, niobium, and tantalum samples. the weight loss after two years of exposure was negligible.
Descriptors : *CORROSION RESISTANCE, *MICROBIOLOGY, *MICROORGANISMS, METALS, ENVIRONMENTS, DETECTION, EXPOSURE(GENERAL), METHYL RADICALS, BACTERIA, POLYMERS, MOLYBDENUM, SUBSTRATES, SILOXANES, SURFACES, SAMPLING, NIOBIUM, ZIRCONIUM, CHROMIUM, INHIBITION, TANTALUM, WEIGHT REDUCTION, TUNGSTEN, COLONIES(BIOLOGY), MECHANICAL COMPONENTS, ESTUARIES.
Subject Categories : Biochemistry
Properties of Metals and Alloys
Distribution Statement : APPROVED FOR PUBLIC RELEASE