Process for manufacturing a part made of nickle-based superalloy containing hafnium
AssigneeSafran
InventorsAmar SABOUNDJI, Virginie JAQUET
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Abstract
The invention relates to a process for manufacturing a part made of nickel-based monocrystalline superalloy containing hafnium. This process is noteworthy in that it comprises the following successive steps consisting in:—manufacturing a nickel-based monocrystalline superalloy that is not doped with hafnium,—manufacturing a part from this superalloy,—directly depositing on said part a layer of hafnium having a thickness of between 50 nm and 800 nm,—carrying out a diffusion treatment of the hafnium so as to form an interdiffusion layer at the surface of said part and to thus obtain a part made of nickel-based monocrystalline superalloy containing hafnium.
Claims12
A process for manufacturing a hafnium-containing nickel-based single-crystal superalloy part, wherein the process comprises the following successive steps consisting in:
- manufacturing a nickel-based, non-hafnium-doped, single-crystal superalloy,
- manufacturing a part from this superalloy,
- depositing, directly on said part, a layer of hafnium having a thickness comprised between 50 nm and 800 nm,
- carrying out a hafnium diffusion treatment so as to form an interdiffusion layer on the surface of said part, and thereby obtain a hafniumcontaining nickel-based single-crystal superalloy part.
Dependencies are inferred from the claim text.