EP 1558776 B1 20080813 - HIGH TEMPERATURE RESISTANT ALLOYS
Title (en)
HIGH TEMPERATURE RESISTANT ALLOYS
Title (de)
HOCHTEMPERATURBESTÄNDIGE LEGIERUNGEN
Title (fr)
ALLIAGES HAUTE TEMPERATURE
Publication
Application
Priority
- GB 0304665 W 20031030
- GB 0225648 A 20021104
- GB 0228576 A 20021209
- GB 0324859 A 20031024
Abstract (en)
[origin: GB2394960A] A first hafnium oxide dispersion hardened nickel-chromium-iron alloy comprising (in % by weight): Ni 15-90%, Cr 5-40 %, Hf 0.01-4.5 %, O 0.001-0.7%, C 0.01-0.7%, Si 0.01-3.0%, N 0.001-0.5%, Mn 0-2.5 %, Mo 0-3.0%, Nb 0-2.0%, Ti 0-2.0%, Zr 0-2.0%, Co 0-2.05 %, W 0-4.0 %, Ta 0-2.0 %, Al 0-15 %, wit the balance being Fe and impurities. This alloy contains at least one of Nb, Ti, W, Ta and Zr. A second hafnium oxide dispersion hardened nickel-chromium-iron alloy comprising (in % by weight): Ni 15-50%, Cr 20-40 %, Hf 0.01-4.5 %, C 0.01-0.5 %, Si 0.01-2.5 %, Mn 0-2.5 %, Mo 0-1.0 %, Nb 0-1.7 %, Ti 0-0.5 %, Zr 0-0.5 %, Co 0-2.0 %, W 0-1.0 %, Ta 0-2.0 %, Al 0-15 %, with the balance being Fe and impurities. This alloy contains at least one of Nb, Ti and Zr. The alloy is made by adding hafnium particles to a melt held in a ladle, oxidising the particles in the melt, adding aluminium if present in the alloy and then pouring.
IPC 8 full level
C22C 30/00 (2006.01); C22C 19/05 (2006.01); C22C 32/00 (2006.01); C22C 33/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/40 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01)
CPC (source: EP GB US)
C22C 19/053 (2013.01 - EP US); C22C 19/055 (2013.01 - EP US); C22C 19/056 (2013.01 - EP US); C22C 19/057 (2013.01 - EP US); C22C 19/058 (2013.01 - EP US); C22C 30/00 (2013.01 - EP US); C22C 32/0026 (2013.01 - EP GB US); C22C 33/0228 (2013.01 - EP US); C22C 33/0285 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/40 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
GB 0325297 D0 20031203; GB 2394960 A 20040512; GB 2394960 B 20070425; AU 2003283525 A1 20040607; AU 2003283525 A8 20040607; EP 1558776 A2 20050803; EP 1558776 B1 20080813; EP 1558776 B8 20090429; EP 1935996 A1 20080625; JP 2006505694 A 20060216; US 2007144622 A1 20070628; WO 2004042100 A2 20040521; WO 2004042100 A3 20040819
DOCDB simple family (application)
GB 0325297 A 20031030; AU 2003283525 A 20031030; EP 03775499 A 20031030; EP 08153580 A 20031030; GB 0304665 W 20031030; JP 2004549307 A 20031030; US 53303403 A 20031030