EP 1195446 A1 20020410 - Ni based superalloy and its use as gas turbine disks, shafts, and impellers
Title (en)
Ni based superalloy and its use as gas turbine disks, shafts, and impellers
Title (de)
Ni-basis-Superlegierung und ihre Verwendung als Gasturbinen-Scheiben, -Wellen und -Laufräder
Title (fr)
Superalliage à base Ni et son utilisation comme disques, arbres et rotors de turbines à gaz
Publication
Application
Priority
EP 00308759 A 20001004
Abstract (en)
An alloy which is particularly useful in aircraft gas turbine disks (22), shafts (24), and impellers (22) has a composition, in weight percent, of from about 14 percent to about 23 percent cobalt, from about 11 percent to about 15 percent chromium, from about 0.5 percent to about 4 percent tantalum, from about 0.5 to about 3 percent tungsten, from about 2.7 to about 5 percent molybdenum, from about 0.015 to about 0.15 percent zirconium, from 0.25 to about 3 percent niobium, from about 3 to about 6 percent titanium, from about 2 to about 5 percent aluminum, from 0 to about 2.5 percent rhenium, from 0 to about 2 percent vanadium, from 0 to about 2 percent iron, from 0 to about 2 percent hafnium, from 0 to about 0.1 percent magnesium from about 0.015 to about 0.1 percent carbon, from about 0.015 percent to about 0.045 percent boron, balance nickel and impurities. <IMAGE>
IPC 1-7
IPC 8 full level
B22F 3/24 (2006.01); C22C 1/04 (2006.01); C22C 19/05 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP)
B22F 3/24 (2013.01); C22C 1/0433 (2013.01); C22C 19/056 (2013.01); C22F 1/10 (2013.01); B22F 2003/248 (2013.01)
Citation (search report)
- [X] US 5120373 A 19920609 - MILLER JOHN A [US], et al
- [X] EP 0373298 A1 19900620 - GEN ELECTRIC [US]
- [X] EP 0849370 A1 19980624 - UNITED TECHNOLOGIES CORP [US]
- [A] EP 0372170 A1 19900613 - GEN ELECTRIC [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1195446 A1 20020410; DE 60041936 D1 20090514; EP 1666618 A1 20060607; EP 1666618 B1 20090401; EP 1666618 B2 20150603
DOCDB simple family (application)
EP 00308759 A 20001004; DE 60041936 T 20001004; EP 06001713 A 20001004