METHOD OF PRODUCING METAL-REINFORCED COMPOSITE MATERIAL BASED ON IRON REINFORCED WITH OXIDES OF NANOPOWDERS Russian patent published in 2019 - IPC C22C33/02 C22C32/00 C22C1/05 B82Y30/00 B82Y40/00 B22F9/12 

FIELD: metallurgy.

SUBSTANCE: invention relates to production of iron-based composite material reinforced with oxides of metals. Method includes mechanical alloying of mixture consisting of powder of low-stability at deformation of iron oxide in form of Fe₂O₃ or Fe₃O₄ and alloyed steel powder, and subsequent annealing. As alloyed steel powder there used is nanopowder of steel alloyed with tungsten nanooxides and heat-resistant nanooxides of yttrium and/or titanium. Mechanical doping of the mixture is carried out by intensive cold deformation by shearing in a ball mill at a rotor speed of mill to 3,000 rpm, filled with metal balls with diameter of 1–2 mm.

EFFECT: enabling increase in strength characteristics of composite material by 20–30 %.

1 cl, 1 dwg, 2 tbl