EP 3697938 B1 20220525 - A NICKEL-BASED ALLOY
Title (en)
A NICKEL-BASED ALLOY
Title (de)
NICKELBASIERTE LEGIERUNG
Title (fr)
ALLIAGE À BASE DE NICKEL
Publication
Application
Priority
- GB 201716964 A 20171016
- GB 2018052973 W 20181016
Abstract (en)
[origin: GB2567492A] A nickel-based alloy comprising (by weight): 9.5-14.4 chromium, 3.8-9.6 cobalt, 0.6-5.1 % molybdenum, 0.7-6.2 % tungsten, 2.6-3.3 % aluminium, 2.3-5.6 % titanium, 0.01-0.1 % carbon, 0.001-0.1 % boron, 0.001-0.3 % zirconium, 0-4.0 % iron, 0-4.0 % niobium, 0-2.4 % tantalum, 0-0.5 % silicon, 0-0.1 % yttrium, 0-0.1 % lanthanum, 0-0.1 % cerium, 0-0.003 % sulphur, 0-0.25 % manganese, 0-0.5 % vanadium, 0-0.5 % copper and 0-0.5 % hafnium, with the balance being nickel and impurities and where 0.6Ti + 0.31Nb + 0.27Ta + 0.12Al ≥ 3.7. The alloy comprises 51-58 % by volume of gamma-prime phase at 850 0C and can be used to make turbine discs.
IPC 8 full level
C22C 19/05 (2006.01); F01D 5/06 (2006.01)
CPC (source: EP GB)
C22C 19/056 (2013.01 - EP GB); F01D 5/06 (2013.01 - EP); F05D 2300/17 (2013.01 - EP); F05D 2300/177 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
GB 201716964 D0 20171129; GB 2567492 A 20190417; GB 2567492 B 20200923; EP 3697938 A1 20200826; EP 3697938 B1 20220525; JP 2020537051 A 20201217; WO 2019077333 A1 20190425
DOCDB simple family (application)
GB 201716964 A 20171016; EP 18788879 A 20181016; GB 2018052973 W 20181016; JP 2020542211 A 20181016