FIELD: powder metallurgy.
SUBSTANCE: invention related to methods for producing powder material to obtain a fine-grained structure in sintered materials with specified physical and mechanical properties. The method involves introducing tungsten nanoparticles of equiaxial shape with a size of 50-80 nm, obtained by a plasma-thermal method, into a powder sintered material containing cobalt, copper and tin. In this case, tungsten nanoparticles are introduced in an amount of 1-20 wt.% by weight of the sintered powder material.
EFFECT: obtaining a homogeneous fine-grained structure, increasing hardness and strength in the sintered material.
1 cl, 1 tbl, 1 ex
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