ИСТИНА

In this study, we reports on composites based on multicomponent η-carbides Nb3(Fe,Al)3C, (Nb,Fe)6C, (W,Fe)6C and (W,Fe)12C, multicomponent phases based on intermetallic compounds Nb5Al3Cх, Nb5Si3Cx, and Ti5Si3Cx, as well as those based on G-phases in systems Ti-Ni-Si, Ti-Co-Si, Ti-Co-Al, and Ti-Fe-Al, as synthesized through mechanical alloying of respective elemental powders in organic liquid for the first time. Some of these multicomponent compounds have been prepared as monophases for the first time. Bulk composites based on Ti6Ni16Si7 and Ti6Co16Si7 were fabricated via magnetic pulse compacting, whereas composites based on Nb3(Fe,Al)3C and Ti2AlC were consolidated by spark plasma sintering. Coatings comprised of (Nb,Fe)6C, (W,Fe)6C and (W,Fe)12C phases were applied to steel and iron via high-speed selective laser sintering. The properties of the as-prepared samples were characterized, including density, hardness, wear resistance, electrical resistance, electrocatalytic activity in the reaction of hydrogen evolution.