Abstract
Features of the influence of Al2O3, ZrO2, WC, and Si3N4 nanoparticles on the process of obtainment, mechanical, and tribological properties of the 74%Fe-15%Co-9%Cu-1%Sn alloy obtained by powder metallurgy methods are investigated. Mixing nanoparticles with alloy powder was performed in a centrifugal planetary mill. It is shown that the nanoparticles uniformly distributed over the charge complicate the processes of compaction during cold pressing and sintering. The alloy (dispersion strengthened by nanoparticles), which was obtained by the technology of hot pressing, is characterized by high mechanical and tribological properties. Wear resistance increases by a factor of four, hardness is increased by 10–16 HRB, and the bending breaking point is increased by 54%.
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