| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1472368 | Corrosion Science | 2006 | 23 Pages |
The analysis of current transients occurring on Mo containing ferritic Fe–18Cr steels in chloride containing electrolyte in absence or presence of MoO42- molybdate anions as external inhibitor reveals insight into the role of Mo-species in metastable pitting events, consisting of pit initiation, pit propagation including some metal dissolution, and pit repassivation. A mathematical method on the basis of statistical distribution functions was developed in order to meet the requirements of a systematic data analysis which allows to compare different systems of alloys and electrolytes. The results clearly indicate the beneficial effect of alloyed Mo as well as MoO42- in the electrolyte in inhibiting (metastable) pitting corrosion. However, the mechanism of inhibition is unlike for alloyed Mo and MoO42- added into the electrolyte.
