FIELD: metallurgy; preparation of compounds for modification of cast- iron; manufacture of high-strength parts. SUBSTANCE: mixture contains the following components, mas.%: ultradispersed powder of metal oxide of groups IV-VIII, 60-70; aluminum powder, 20-25; and carbon-containing material, 10-15. EFFECT: increase of tensile strength by 20-25% without use of expensive magnesium bases; reduced power requirements; reduced consumption of modifying agent. 3 cl, 1 tbl, 1 ex
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