ABSTRACT
Sulfur is an element which is found in the bulk of most materials (in saturated solid solution and often in inclusions) as well as in many environments (in the form of, e.g., HS−, H2S, SO2, S O2 3
2−). The role of sulŽde inclusions in corrosion has been recognized in early works. The
fact that sulfur-containing species are detrimental to the resistance of metals and alloys to localized corrosion has been established for a long time but the mechanisms have
CONTENTS
8.1 Introduction ........................................................................................................................ 395 8.2 Fundamental Aspects of Sulfur-Induced Corrosion .................................................... 396
8.2.1 Activation (Acceleration) of Anodic Dissolution by Adsorbed Sulfur .......... 396 8.2.2 Blocking or Retarding Effect of Adsorbed Sulfur on Passivation .................. 399
8.2.2.1 Effect on the Growth of the Passive Film ............................................ 399 8.2.2.2 Effect on the Passivation Kinetics ......................................................... 399 8.2.2.3 Effect on the Structure and Properties of the Passive Film ..............400
