Abstract
The effect of crystallization on corrosion properties of amorphous Iron basealloys was investigated by the measurement of potentiostatic polarization curves in H2SO4+NaCl solution.The crystallization process of the amorpous wasstudied by X-ray diffraction, electrical resistivity and passive current density.The passive current density exponentialy increased with increasing the isothermalannealing temperature.From the change of the passive current density, the activationenergy of the crystallization process was estimated to be 49kcal·mol-1for amorphous Fe72Cr8P13C7, and to be 60.8kcal·mol-1 for amorphous Fe64Cr16P13C7.These activation energies were nearly the same values as were obtaindfrom the change of electrical resistivity.
