EP 2188401 A1 20100526 - NICKEL BASE SUPERALLOY COMPOSITIONS BEING SUBSTANTIALLY FREE OF RHENIUM AND SUPERALLOY ARTICLES
Title (en)
NICKEL BASE SUPERALLOY COMPOSITIONS BEING SUBSTANTIALLY FREE OF RHENIUM AND SUPERALLOY ARTICLES
Title (de)
WEITGEHEND RHENIUMFREIE SUPERLEGIERUNGSZUSAMMENSETZUNGEN AUF NICKELBASIS UND SUPERLEGIERUNGSARTIKEL
Title (fr)
COMPOSITION DE SUPERALLIAGE AU NICKEL SENSIBLEMENT EXEMPTE DE RHÉNIUM, ET ARTICLES EN SUPERALLIAGE
Publication
Application
Priority
- US 2008074171 W 20080825
- US 96936007 P 20070831
- US 96466807 A 20071226
Abstract (en)
[origin: WO2009032579A1] A nickel base superalloy composition substantially free of rhenium includes, in percentages by weight: about 5-8 Cr; about 7-8 Co; about 1.3-2.2 Mo; about 4.75-6.75 W; about 6.0-7.0 Ta; if present, up to about 0.5 Ti; about 6.0-6.4 Al; about 0.15-0.6 Hf; if present, from about 0.03-0.06 C; if present, up to about 0.004 B; if present, one or more rare earths selected from Y, La, and Ce up to about 0.03 total, the balance including nickel and incidental impurities. The superalloy composition is able to provide sustained-peak low cycle fatigue and/or oxidation resistance properties comparable to second generation superalloy compositions including at least about 3 wt% rhenium. Superalloy articles incorporating the compositions include nozzles, shrouds, and splash plates for gas turbine engines.
IPC 8 full level
C22C 19/05 (2006.01); C30B 29/52 (2006.01)
CPC (source: EP US)
C22C 19/057 (2013.01 - EP US); F01D 5/147 (2013.01 - US)
Citation (search report)
See references of WO 2009032579A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009032579 A1 20090312; CA 2696939 A1 20090312; CN 101790593 A 20100728; CN 104313397 A 20150128; EP 2188401 A1 20100526; JP 2011514431 A 20110506; JP 5595917 B2 20140924; US 2013230405 A1 20130905
DOCDB simple family (application)
US 2008074171 W 20080825; CA 2696939 A 20080825; CN 200880105530 A 20080825; CN 201410525776 A 20080825; EP 08798597 A 20080825; JP 2010523068 A 20080825; US 96466807 A 20071226