LOCALIZED CORROSION OF AMORPHOUS FE-NI-CR-P-B ALLOYS

Experiments were performed with a series of amorphous Fe-Ni-Cr-P-B alloys of varying Cr content to characterize their susceptibility to crevice corrosion. The amorphous alloys were considerably more intert to corrosion that T304 and Incoloy 800 steels, suggesting a lesser susceptibility to crevice attack. Experiments with the artificial crevice cell confirmed that the amorphous alloys can indeed be forced to crevice corrode, but only at very anodic (transpassive) potentials.