Part and method for manufacturing the part from a superalloy powder
AssigneeSafran
InventorsSébastien Jean RICHARD, Jérémy RAME
Life of this patent
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Abstract
A component made from nickel-based superalloy powder consisting of, by mass percent, 14.00 to 15.25% chromium, 14.25 to 15.75% cobalt, 3.9 to 4.5% molybdenum, 4.0 to 4.6% aluminum, 3.0 to 3.7% titanium, 0 to 200 ppm carbon, the remainder consisting of nickel and unavoidable impurities.
Claims7
Component made from a nickel-based superalloy powder consisting of, by mass percent, 14.00 to 15.25% chromium, 14.25 to 15.75% cobalt, 3.9 to 4.5% molybdenum, 4.0 to 4.6% aluminum, 3.0 to 3.7% titanium, 0 to 0.10 copper, 0 to 0.50 iron, 0 to 200 ppm carbon, the remainder consisting of nickel and unavoidable impurities, the component comprising less than 700 ppm carbon, preferably less than 600 ppm carbon.
Manufacturing process of a component from a nickel-based superalloy powder consisting of, by mass percent, 14.00 to 15.25% chromium, 14.25 to 15.75% cobalt, 3.9 to 4.5% molybdenum, 4.0 to 4.6% aluminum, 3.0 to 3.7% titanium, 0 to 0.10 copper, 0 to 0.50 iron, 0 to 200 ppm carbon, the remainder consisting of nickel and unavoidable impurities, the manufacturing process comprising the following steps:
- mixing the nickel-based superalloy powder with at least two binders to obtain a mixture;
- injection molding the mixture in a mold to obtain a green component;
- debinding the green component to obtain a debonded component;
- sintering the debonded component to obtain a sintered component;
- and
- heat treating the sintered component comprising a step of growing the grains so that the average size of the grains is greater than or equal to ASTM6 measured according to the ASTM E112-13 standard and a step of precipitating a γ′ phase.
Dependencies are inferred from the claim text.