Features of electrochemical and mechanical behavior of cobalt-based amorphous alloys in acidic media with potassium rhodanide additives

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 of the ultimate strength and microhardness of the alloy on the acidity of the medium are obtained. Morphological features of the destruction of amorphous alloys after exposure to acidic solutions have been established, consisting in the formation of relief, chips and cracks on the fracture surface, which are not characteristic of the destruction of amorphous alloys in the initial state due to embrittlement of the alloy.