The effect of aggressive anions chloride and sulfide and their mixtures on the localized corrosion resistance of type 410 (UNS(1) S41000) stainless steel (SS) has been studied. A synergistic effect of these anions on pitting attack was found. The quenched condition offers the highest resistance followed by the as received condition. Tempered states show worse corrosion resistance than the other states.

A comparison between the effect of biogenic and inorganic sulfides and the study of bacterial adhesion on type 410 SS surfaces were made. The adhesion of Desulfovibrio vulgaris on the metal probes facilitated localized attack in chloride media.

Subject
Scanning electron microscopy, Metal surfaces, Photomicrographs, Magnification, Corrosion attacks, Film formation, Metals, Immersion, Sulfides, Corrosion resistance, Chlorides, Quenching and tempering, Potentiodynamic polarization
Keywords:
bacterial adhesion, biofilms, biogenic sulfide, MIC, microstructure, pitting behavior, sulfate-reducing bacteria, type 410 SS
National Association of Corrosion Engineers
1991
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