CHROMIUM-BASED INTERMETALLIDE ALLOY Russian patent published in 1997 - IPC

FIELD: nonferrous metallurgy. SUBSTANCE: invention relates to manufacturing articled operated at 1100-1300 C in oxidative gas media, for instance, for manufacturing hot stamps and parts for hot path of gas-turbine and other engines. Intermetallide alloy contains (in wt %): titanium, 18.0-23.0; silicon, 1.0-4.0; at least one of yttrium, 0.2-1.0, and aluminium, 0.2-2.0; at least one of iron and nickel, 0.2-2.0; and chromium, the balance. Such alloys are two-phase - alloyed intermetallide Cr₂Ti and chromium-based solid solution. EFFECT: elevated heat resistance and plasticity with high strength at high temperatures. 1 tbl