EP 0053948 B1 19840926 - NICKEL-CHROMIUM-COBALT BASE ALLOYS AND CASTINGS THEREOF
Title (en)
NICKEL-CHROMIUM-COBALT BASE ALLOYS AND CASTINGS THEREOF
Publication
Application
Priority
GB 8039492 A 19801210
Abstract (en)
[origin: EP0053948A1] Nickel-chromium-cobalt base casting alloys having compositions within the range (in percent by weight) Cr 20-23%, Co 17-23%, W 1-2.5%, Mo 0-0.5%, Nb 0.4-1.2%, Ta 0.6-1.4%, Ti 2,95-3.85%, Al 1.6-2.8%, Hf 0.3-1.3%, Zr 0.005-1%, B 0.001-1%, C 0.01-0.25%, balance Ni and impurities, wherein the contents of Nb, Hf, Ti and Al are further specifically correlated, exhibit at high temperatures a combination of good resistance to corrosion and very high creep-rupture lives, particularly when directionally solidified. The alloys are useful as materials for cast blades and vanes for gas turbines for marine and land-based service.
IPC 1-7
IPC 8 full level
C22C 19/05 (2006.01)
CPC (source: EP)
C22C 19/055 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0053948 A1 19820616; EP 0053948 B1 19840926; AT E9598 T1 19841015; CA 1202505 A 19860401; DE 3166370 D1 19841031; JP H028016 B2 19900222; JP S57123950 A 19820802
DOCDB simple family (application)
EP 81305828 A 19811210; AT 81305828 T 19811210; CA 391890 A 19811209; DE 3166370 T 19811210; JP 19945081 A 19811210