SAE 1020 and X-60 steel samples were assayed in laboratory experiments against two different microbial strains isolated from cutting-oil emulsions: Pseudomonas fluorescens and Desulfovibrio vulgaris to evaluate their resistance to microbial attack. Several electrodes were immersed during different periods of time either in a Pseudomonas fluorescens or in a Desulfovibrio vulgaris pure culture and in a mixed culture of Pseudomonas fluorescens + Desulfovibrio vulgaris.

The relationship between the corrosive attack and bacterial biofilms was assessed in each case by using electrochemical experiments complemented with scanning electron microscopy observation of the samples.

Subject
Scanning electron microscopy, Metal surfaces, Emulsions, Micrography, Biofilms, Film formation, Metals, Bacteria, Steel, Immersion, Polarization, Electrodes, Potentiodynamic polarization
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1990
Association for Materials Protection and Performance (AMPP)
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