EP 1201777 B1 20040204 - Superalloy optimized for high-temperature performance in high-pressure turbine disks
Title (en)
Superalloy optimized for high-temperature performance in high-pressure turbine disks
Title (de)
Superlegierung mit optimiertem Hochtemperaturwirkungsgrad in Hochdruckturbinenscheiben
Title (fr)
Superalliage optimalise pour performance a haute temperature dans disques de turbine a haute pression
Publication
Application
Priority
EP 00308571 A 20000929
Abstract (en)
[origin: EP1201777A1] A superalloy has a composition of, in weight percent, from about 16.0 percent to about 22.4 percent cobalt, from about 6.6 percent to about 14.3 percent chromium, from about 1.4 percent to about 3.5 percent tantalum, from about 1.9 percent to about 4.0 percent tungsten, from about 1.9 percent to about 3.9 percent molybdenum, from about 0.03 percent to about 0.10 percent zirconium, from about 0.9 percent to about 3.0 percent niobium, from about 2.4 percent to about 4.6 percent titanium, from about 2.6 percent to about 4.8 percent aluminum, from 0 to about 2.5 percent rhenium, from about 0.02 percent to about 0.10 percent carbon, from about 0.02 percent to about 0.10 percent boron, balance nickel and minor amounts of impurities. The superalloy is advantageously utilized in aircraft gas turbine disks.
IPC 1-7
IPC 8 full level
C22C 1/04 (2006.01); C22C 19/05 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP)
C22C 1/0441 (2013.01); C22C 19/056 (2013.01); C22C 19/057 (2013.01); C22F 1/10 (2013.01); B22F 2003/248 (2013.01); B22F 2998/00 (2013.01); B22F 2998/10 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1201777 A1 20020502; EP 1201777 B1 20040204; DE 60008116 D1 20040311; DE 60008116 T2 20040916
DOCDB simple family (application)
EP 00308571 A 20000929; DE 60008116 T 20000929