OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 26 No. 2 2024 Fig. 2. Optical (a, b) and SEM images (c, d) of the microstructure of sintered compacts from mechanically activated mixtures: Fe2Ti + C (a, c) and FeTi + C (b, d) a b c d Ta b l e 2 Elemental composition of the steel binder in composites sintered from a mechanically activated Fe2Ti + C mixture (Fig. 3) Number of spectrum Content of elements, at. % Titanium Carbon Iron 1 2.48 12.02 85.51 3 1.86 16.81 81.33 ferrite promoter. Titanium solubility in α-Fe exceeds 10 at. %. Another reason for the increased carbon content in the binder can be insufficient locality of the electron probe method for determining the elemental composition in small-sized areas. The elemental composition of the binder in the structure of composite No. 2 was also assessed by EDX point analysis (fig. 4, Table 3). According to the results of local elemental analysis (Table 3), the binder in composite No. 2 contains an anomalously large amount of carbon. One possible explanation may be the effect of titanium on the solubility of carbon in ferrite. However, in our opinion, the main reason is the insufficient locality of the electron probe method for local elemental analysis in the finely dispersed composition structure.
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