Electrochemical characteristics of Fe78.5Ni0.1Mo0.5Si14.0B6.0 amorphous alloy for different nature of aggressive environment

Keywords

amorphous alloys, corrosion resistance, electrochemical characteristics, cyclic polarization, electrochemical impedance spectroscopy.

Cite as

Hertsyk O. M., Kovbuz M. O., Hula T. H., Yezerska O. A., Kornii S. A., and Pandiak N. L. Electrochemical characteristics of Fe_78.5Ni_0.1Mo_0.5Si_14.0B_6.0 amorphous alloy for different nature of aggressive environment. Physico­chemical Mechanics of Materials. 2022. 58(2), 020-025.

Abstract

The influence of the nature of the aggressive environment on the corrosion resistance of the Fe_78.5Ni_1.0Mo_0.5Si_14.0B₆^.amorphous metal alloy is investigated by various electroche­mical methods. The electrochemical characteristics of the alloy in 0.5 M aqueous solutions of NaCl, HCl, KOH and H₂SO₄ at T = (293 ± 1) K are determined. It is shown that the corrosion resistance of amorphous material significantly depends on the component com­position of the aggressive medium. The formation of dense passivation layers on the sur­face of Fe_78.5Ni_1.0Mo_0.5Si_14.0B_6.0 in alkaline solution is established.

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