WO2025214648 - A LOW DENSITY NICKEL BASE GAMMA PRIME STRENGTHENED SUPERALLOY, A COMPONENT AND METHOD
National phase entry is expected:
Publication Number
WO/2025/214648
Publication Date
16.10.2025
International Application No.
PCT/EP2025/055221
International Filing Date
26.02.2025
Title **
[English]
A LOW DENSITY NICKEL BASE GAMMA PRIME STRENGTHENED SUPERALLOY, A COMPONENT AND METHOD
[French]
SUPERALLIAGE RENFORCÉ PAR GAMMA PRIME À BASE DE NICKEL À FAIBLE DENSITÉ, COMPOSANT ET PROCÉDÉ
Applicants **
SIEMENS ENERGY GLOBAL GMBH & CO. KG
Inventors
HASSELQVIST, Magnus
Priority Data
2405225.0
12.04.2024
GB
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2143 | |
| EPO | Filing, Examination, Granting | 10345 | |
| Japan | Filing, Examination, Granting | 2325 | |
| South Korea | Filing, Examination, Granting | 2276 | |
| USA | Filing, Examination, Granting | 13140 |
Total:
30,229
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Abstract[English]
The invention is a Nickel base gamma prime strengthened superalloy with a composition (in wt%) comprising (in wt%) 3.0 - 13.0 Cobalt (Co), 11.5% - 13.5% Chromium (Cr), 1.5% - 2.0% Molybdenum (Mo), 1.7% - 2.7% Tungsten (W), 3.8% - 4.8% Aluminum (Al), 1.7 - 2.7 Titanium (Ti), 3.8 - 5.5 Niobium (Nb), 0.005 - 0.20 Carbon (C), up to 0.03 Boron (B), up to 0.05 Zirconium (Zr), 0.005 - 0.50 Silicon (Si), up to 2.0 Hafnium (Hf), up to 5.0 Iron (Fe). The rest being Nickel (Ni) and unavoidable impurities. Use of this alloy for conventional, directional solidification or single crystal casting of components, especially later stage blades, in land based gas turbines.[French]
L'invention est un superalliage renforcé par gamma prime à base de nickel avec une composition (% en poids) comprenant (en % en poids) entre 3,0 et 13,0 de cobalt (Co), entre 11,5 % et 13,5 % de chrome (Cr), entre 1,5 % et 2,0 % de molybdène (Mo), entre 1,7 % et 2,7 % de tungstène (W), entre 3,8 % et 4,8 % d'aluminium (Al), entre 1,7 et 2,7 de titane (Ti), entre 3,8 et 5,5 de niobium (Nb), entre 0,005 et 0,20 de carbone (C), jusqu'à 0,03 de bore (B), jusqu'à 0,05 de zirconium (Zr), entre 0,005 et 0,50 de silicium (Si), jusqu'à 2,0 d'hafnium (Hf), jusqu'à 5,0 de fer (Fe). Le reste est du nickel (Ni) et des impuretés inévitables. Utilisation de cet alliage pour la solidification dirigée classique ou le coulage monocristallin de composants, notamment de pales d'étape ultérieure, dans des turbines à gaz terrestres.