Superalloy aircraft part comprising a cooling channel
AssigneeSafran
InventorsAmar SABOUNDJI, Jérémy RAME
Life of this patent
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Abstract
A part includes a substrate made of a nickel-based superalloy, the substrate having a first average mass fraction of one or more first elements chosen from hafnium, silicon and chromium, the substrate having an open cavity in the part and a cooling channel, the substrate further including a surface layer partially forming the cavity, the surface layer having a second average mass fraction of the first element or first elements which is greater than the first average mass fraction.
Claims17
1-14. (canceled)
A part comprising a substrate made of a nickel—based superalloy, which has a first average mass fraction of one or more first elements chosen from hafnium, silicon and chromium and which comprises at least one open cavity in the part,
- wherein the substrate comprises a surface layer at least partially forming the open cavity, the surface layer having a second average mass fraction of the one or more first elements which is greater than the first average mass fraction and wherein when the first element is hafnium then the second mass fraction is between 0.4% and 4.5%, when the first element is silicon then the second mass fraction is between 4% and 10% and when the first element is chromium then the second mass fraction is between 0.2% and 5%.
Dependencies are inferred from the claim text.