Issues »  Volume 43, Issue 4

Electrochemical Characteristics of Modified Amorphous Alloys in Nitric Acid

O. M. Hertsyk$^{1}$, T. H. Hula$^{1}$, M. O. Kovbuz$^{1}$, N. L. Pandiak$^{2}$

$^{1}$Ivan Franko National University of Lviv, 1 Universytets’ka Str., UA-79000 Lviv, Ukraine
$^{2}$Ukrainian National Forestry University, 103 Heneral Chuprynka Str., UA-79057 Lviv, Ukraine

Received: 11.09.2020; final version - 21.01.2021. Download: PDF

The corrosion resistance of the ribbon amorphous alloys in an aqueous solution of 0.05 and 0.1 M nitric acid is investigated by chronopotentiometry and cyclic voltammetry methods. Better corrosion resistance of samples in a solution with a higher concentration is shown. As found, after magnetic treatment the elemental composition and surface morphology of alloys change significantly. An increasing of duration of magnetic influence on the samples by an alternating magnetic field and higher potential scanning rate cause to the passivation of the investigated alloys.

Key words: amorphous alloys, alternating magnetic field, electrochemical characteristics, nitric acid.

URL: https://mfint.imp.kiev.ua/en/abstract/v43/i04/0455.html

DOI: https://doi.org/10.15407/mfint.43.04.0455

PACS: 61.43.Dq, 75.50.Kj, 81.65.Rv, 82.45.Bb, 82.80.Fk

Citation: O. M. Hertsyk, T. H. Hula, M. O. Kovbuz, and N. L. Pandiak, Electrochemical Characteristics of Modified Amorphous Alloys in Nitric Acid, Metallofiz. Noveishie Tekhnol., 43, No. 4: 455—464 (2021) (in Ukrainian)

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