EP 0186797 B1 19890621 - NOVEL COBALT-BASE SUPERALLOY AND CAST AND WELDED INDUSTRIAL GAS TURBINE COMPONENTS THEREOF
Title (en)
NOVEL COBALT-BASE SUPERALLOY AND CAST AND WELDED INDUSTRIAL GAS TURBINE COMPONENTS THEREOF
Publication
Application
Priority
US 67811884 A 19841204
Abstract (en)
[origin: EP0186797A1] Cobalt-base superalloys having special utility in the production of industrial gas turbine hot gas path components because of their unique combination of properties including excellent hot corrosion resistance, creep rupture strength at high temperature, metallurgical stability, tensile ductility and weldability, consist essentially of 0.3 to 0.6% carbon, 27-35% chromium, 9-16% nickel, 6-9% tungsten, 0.45 to 2.0% tantalum, up to 3.0% hafnium, up to 0.1% columbium, up to 0.7% zirconium, not more than 2.0% iron, 1.5% manganese and silicon and 0.05% boron, balance cobalt, the carbide formers being selected to satisfy the following equation: <MATH>
IPC 1-7
IPC 8 full level
C22C 19/07 (2006.01); F01D 9/02 (2006.01)
CPC (source: EP)
C22C 19/07 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0186797 A1 19860709; EP 0186797 B1 19890621; CN 1011984 B 19910313; CN 85109085 A 19860820; DE 3571146 D1 19890727; IN 164571 B 19890415; JP H0459378 B2 19920922; JP S61149450 A 19860708; NO 166542 B 19910429; NO 166542 C 19910807; NO 854859 L 19860605
DOCDB simple family (application)
EP 85115301 A 19851203; CN 85109085 A 19851114; DE 3571146 T 19851203; IN 818CA1985 A 19851118; JP 26629885 A 19851128; NO 854859 A 19851203