Physics of the Solid State
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Features of electrochemical and mechanical behavior of cobalt-based amorphous alloys in acidic media with potassium rhodanide additives
Fedorov V.A.
1, Balybin D.V.
1, Pluzhnikova T.N.
1, Boitsova M.V.
1, Yakovlev A.V.
1, Pluzhnikov S.N.
1
1Tambov State University, Tambov, Russia
Email: fedorov-tsu.tmb@inbox.ru, balybindv@gmail.com, plushnik@mail.ru, mvboitsova@mail.ru, dak-83@mail.ru, plush_serg_nik@mail.ru
The effect of acidic media with potassium rhodanide additives on the rate of partial electrode reactions in an amorphous cobalt-based alloy has been studied. It is shown that potassium rhodanide is a corrosion inhibitor for the studied alloys. The dependences between the ultimate strength or microhardness of the medium alloy and the acidity are obtained. Morphological features at the destruction of amorphous alloys after exposure to acidic solutions have been established, and occurring as relief, chips and cracks on the fracture surface, which are not typical at the destruction of amorphous alloys in the initial state due to material embrittlement. Keywords: amorphous alloys, mechanical properties, acidic solutions.
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