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1. WO2020115478 - A NICKEL-BASED ALLOY

Publication Number WO/2020/115478
Publication Date 11.06.2020
International Application No. PCT/GB2019/053425
International Filing Date 04.12.2019
IPC
C22C 19/05 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
CPC
C22C 19/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
C22C 19/056
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
051and Mo or W
056with the maximum Cr content being at least 10% but less than 20%
C22C 19/057
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
051and Mo or W
057with the maximum Cr content being less 10%
Applicants
  • OXMET TECHNOLOGIES LIMITED [GB]/[GB]
Inventors
  • CRUDDEN, David
Agents
  • J A KEMP LLP
Priority Data
1819780.604.12.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A NICKEL-BASED ALLOY
(FR) ALLIAGE À BASE DE NICKEL
Abstract
(EN)
A nickel-based alloy composition consisting, in weight percent, of: between 5.0% and 6.9% aluminium, between 0.0% and 11.0% cobalt, between 6.0% and 11.6% chromium, between 0.0% and 4.0% molybdenum, between 0.0% and 2.0% niobium, between 0.6 and 8.6% tantalum, between 0.0% and 3.0% titanium, between 8.4% and 15.2% tungsten, between 0.02 wt.% and 0.35 wt.% carbon, between 0.001 and 0.2 wt.% boron, between 0.001 wt.% and 0.5 wt.%. zirconium, between 0.0 and 0.5% silicon, between 0.0 and 0.1% yttrium, between 0.0 and 0.1% lanthanum, between 0.0 and 0.1% cerium, between 0.0 and 0.003% sulphur, between 0.0 and 0.25% manganese, between 0.0 and 0.5% copper, between 0.0 and 2.0% hafnium, between 0.0 and 1.0% vanadium, between 0.0 and 4.0% iron, between 0.0 and 1.0% rhenium, the balance being nickel and incidental impurities, wherein the following equations are satisfied in which WNb, WTa,, WTi, WCr, WMo, WW and WRe are the weight percent of niobium, tantalum, titanium, chromium, molybdenum, tungsten and rhenium in the alloy respectively 6.6 ≤ 2WTi + WTa + 1.44WNb, 22.2 ≥ Ww + WRe + 1.16 WCr + 1.7WMo, 13.9 ≤ WMo + 1.17(Ww + 3.3WRe).
(FR)
La présente invention concerne une composition d'alliage à base de nickel constituée, en pourcentage en poids, de : entre 5,0 % et 6,9 % d'aluminium, entre 0,0 % et 11,0 % de cobalt, entre 6,0 % et 11,6 % de chrome, entre 0,0 % et 4,0 % de molybdène, entre 0,0 % et 2,0 % de niobium, entre 0,6 et 8,6 % de tantale, entre 0,0 % et 3,0 % de titane, entre 8,4 % et 15,2 % de tungstène, entre 0,02 % en poids et 0,35 % en poids de carbone, entre 0 001 et 0,2 % en poids de bore, entre 0 001 % en poids et 0,5 % en poids de zirconium, entre 0,0 et 0,5 % de silicium, entre 0,0 et 0,1 % d'yttrium, entre 0,0 et 0,1 % de lanthane, entre 0,0 et 0,1 % de cérium, entre 0,0 et 0 003 % de soufre, entre 0,0 et 0,25 % de manganèse, entre 0,0 et 0,5 % de cuivre, entre 0,0 et 2,0 % de hafnium, entre 0,0 et 1,0 % de vanadium, entre 0,0 et 4,0 % de fer, entre 0,0 et 1,0 % de rhénium, le reste étant du nickel et des impuretés inévitables, les équations suivantes étant satisfaites, dans lesquelles WNb, WTa,, WTi, WCr, WMo, WW et WRe représentent les pourcentages en poids, respectivement, du niobium, du tantale, du titane, du chrome, du molybdène, du tungstène et du rhénium dans l'alliage 6,6 ≤ 2W Ti + W Ta + 1,44W Nb, 22,2 ≥ W w + W Re + 1,16 W Cr + 1,7W Mo , 13,9 ≤ W Mo + 1,17(W w + 3,3W Re).
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