Evaluating corrosion resistances of Fe-based amorphous alloys by YCr/Mo values

XPS spectra of Fe 2p, Cr 2p, and Mo 3d recorded from the surface of BMG2, BMG3 alloys after potentiostatic polarization at 0.25 and 0.5VSCE; (a1-a3) BMG2 at 0.25 V, (b1-b3) BMG3 at 0.25V, (c1-c3) BMG2 at 0. 5V, (d1-d3) BMG3 at 0.5 V