ODS (oxide dispersion strengthened) high-temperature alloy material for engine turbine and preparation method of ODS high-temperature alloy material
A high-temperature alloy and ODS technology, applied in the field of high-temperature alloys, can solve the problems of easy expansion of fatigue cracks, deterioration of hot working performance, and reduction of low-cycle fatigue performance, and achieve excellent machinability, excellent tensile strength, and good structural stability Effect
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[0025] A superalloy material for an engine turbine, the composition of the superalloy material includes by weight percentage: C: 0.265%, Mn: 2.18%, Si: 0.54%, Cr: 18.7%, Mo: 9.3%, W: 3.68 %, Al: 0.28%, Cu: 0.21%, Fe: 6.5%, B: 1.05%, Co: 6.81%, Zr: 0.16%, Nb: 1.21%, Y2Ti2O7 nanoparticles: 1.35%, the balance is Ni and not Impurities to be avoided, the manufacturing method of the superalloy material for the engine turbine, comprises the following steps:
[0026] (1) Raw material preparation: by calculation, the alloy components other than the composite oxide Y-Ti-O nanoparticles in the above-mentioned ODS superalloy material added with composite oxide nanoparticles are batched;
[0027](2) Smelting electrode rods, smelting the raw materials to control the vacuum degree of 0.1Pa, keep the melting power unchanged for 37 minutes after all the raw materials are melted; increase the vacuum degree to 0.008Pa, refine at 1635°C for 12 minutes, adjust the composition to meet the requirem...
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