Influence of microstructure on the electrochemical behaviour of type 410 SS in chloride media with inorganic and biogenic sulfide

MORENO, D.; FERNÁNDEZ LORENZO DE MELE, M; IBARS, J.R.; VIDELA,H

CORROSION

NATL ASSOC CORROSION ENG

Año: 1991 vol. 47 p. 2 - 9

0010-9312

The effect of aggressive anions chloride and sulfide and their mixtures on the localized corrosion resistance of type 410 (UNS 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.