Superalloy having a nickel base matrix, manufactured by powder-metallurgical processing, and gas turbine discs made from this alloy

摘要

superalliage nickel base matrix with good mechanical properties and hot in tension, low cycle fatigue and creep, cracking resistance, the chemical composition, in weight percentages, and belongs to the field of co cr 11 to 13. 8 17, mo 6 to 8; (less than or equal to 1.5; 4 to 5; al; 4 to 5; hf is less than or equal to 1; and (c), (b).and each less than or equal to 500 ppm or more at 100. this alloy can be produced advantageously by powder metallurgy, and applied in the manufacture of turbomachine discs.