HIGH-TEMPERATURE ALLOY INTENDED FOR FORMATION OF FINE DISPERSE DISCHARGES OF CARBIDE Ti-Nb-Cr OR CARBIDE Ti-Nb-Zr-Cr Russian patent published in 2011 - IPC C22C38/58 C22C38/50 C22C19/05 C01B3/40 

FIELD: metallurgy.

SUBSTANCE: alloy contains wt %: carbon (C) over 0.6, but not over 0.9, silicon (Si) to 2.5, manganese (Mn) to 3.0, chromium (Cr) from 20 to 28, nickel (Ni) from 8 to 55, titanium (Ti) from 0.01 to 0.8, niobium (Nb) from 0.05 to 1.5, iron and unavoidable impurities - the rest. Ratio of atom percents (Ti+Nb)/C is from 0.12 to 0.29. Upon heating to temperature of at least 800°C alloy has fine dispersed discharges of carbide Ti-Nb-Cr with dimension of particles to 100 nm. Alloy can additionally contain to 0.5 wt % of zirconium (Zr) and upon heating to temperature of at least 800°C alloy can have fine dispersed discharges of carbide Ti-Nb-Zr-Cr with dimension of particles to 100 nm. Alloy can additionally contain from 0.001 to 0.05 wt % of magnesium and from 0.001 to 0.2 wt % of cerium.

EFFECT: alloy possesses high resistance to creep and high heat conductivity.

14 cl, 9 dwg, 1 tbl, 1 ex