Purpose: The purpose of the study is to examine the mechanical properties of Fe73Ti5Y3B19, and Fe73Co5Y3B19 alloys and to carry out the comparative examination of the bright side of these alloys. Design/methodology/approach: The Fe73Ti5Y3B19, Fe73Co5Y3B19 alloys were produced by the melt-spinning method. This method involves rapid cooling of the metal on a spinning copper cylinder. The cooling rate required for obtaining the amorphous alloy ranges from 105 to 106 K/s. The above-mentioned method is popular and often used; however, in order to obtain alloys of an amorphous structure, its should assured that the conditions for obtaining amorphous materials, as set by A. Inoe, are satisfied. Findings: Mechanical properties, such as microhardness, roughness, abrasive wear with the use of a ball tester, have been described and the X-ray diffraction has been determined in the paper. Research limitations/implications: The effect of the investigation are differences in mechanical properties found between the examined alloys. Practical implications: The amorphous Fe73Ti5Y3B19, Fe73Co5Y3B19 alloys find application in the power industry, where there are used for transformer cores.
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