EP 1211336 A1 20020605 - Nickel based superalloy for single crystal turbine blades of industrial turbines having a high resistance to hot corrosion
Title (en)
Nickel based superalloy for single crystal turbine blades of industrial turbines having a high resistance to hot corrosion
Title (de)
Superlegierung auf Nickelbasis für Einkristallturbinenschaufeln von industriellen Turbinen mit hoher Beständigkeit gegen Heisskorrosion
Title (fr)
Superalliage à base de nickel pour aubes monocristallines de turbines industrielles ayant une résistance élevée à la corrosion à chaud
Publication
Application
Priority
EP 00403362 A 20001130
Abstract (en)
A nickel based superalloy, suitable for monocrystalline solidification, comprises (wt.%): (a) 4.75-5.25 cobalt; (b) 11.5-12.5 chromium; (c) 0.8-1.2 molybdenum; (d) 3.75-4.25 tungsten; (e) 3.75-4.25 aluminum; (f) 4-4.8 titanium; (g) 1.75-2.25 tantalum; (h) 0.006-0.04 carbon; (i) ≤ 0.01 boron; (j) ≤ 0.01 zirconium; (k) ≤ 1 hafnium; (l) ≤ 1 niobium; and (m) remainder nickel and inevitable impurities. An Independent claim is also included for an industrial turbine blade produced by the monocrystalline solidification of the above superalloy.
Abstract (fr)
Superalliage à base de nickel, apte à la solidification monocristalline, ayant la composition pondérale suivante: Co, 4,75 à 5,25 %; Cr, 11,5 à 12,5 %; Mo, 0,8 à 1,2 %; W, 3,75 à 4,25 %; Al, 3,75 à 4,25 %; Ti, 4 à 4,8 %; Ta, 1,75 à 2,25 %; C, 0,006 à 0,04 %; B, <= 0,01 %; Zr, <= 0,01 %; Hf, <= 1 %; Nb, <= 1 % Ni et impuretés éventuelles: complément à 100 %.
IPC 1-7
IPC 8 full level
C22C 19/05 (2006.01); F01D 5/28 (2006.01)
CPC (source: EP US)
C22C 19/056 (2013.01 - EP US)
Citation (search report)
- [A] US 4885216 A 19891205 - NAIK SUBHASH K [US]
- [A] EP 1038982 A1 20000927 - HOWMET RES CORP [US]
- [A] GB 2234521 A 19910206 - GEN ELECTRIC [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1211336 A1 20020605; EP 1211336 B1 20070530; DE 60035052 D1 20070712; DE 60035052 T2 20080124; JP 2002194467 A 20020710; US 2003047252 A1 20030313; US 2004069380 A1 20040415
DOCDB simple family (application)
EP 00403362 A 20001130; DE 60035052 T 20001130; JP 2001365810 A 20011130; US 63602403 A 20030807; US 874501 A 20011130