MODIFIER Russian patent published in 2011 - IPC C22C35/00 C21C7/00 

FIELD: metallurgy.

SUBSTANCE: modifier consists of disperse particles of carbide of boron, titanium di-boride and chromium at following ratio of wt %: boron carbide 50-70, titanium di-boride 20-40, chromium - the rest. Synthetic particles of refractory compounds of dimensions not over 1-3 mcm are used in composition of modifier.

EFFECT: raised long-term strength at high temperature, wear resistance and resource of operation of casts of heat resistant alloys designed for fabrication of tool of hot treatment blanks of high strength steel and alloys.

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