EP 2163656 A1 20100317 - High-temperature-resistant cobalt-base superalloy
Title (en)
High-temperature-resistant cobalt-base superalloy
Title (de)
Hochtemperaturbeständige Kobaltbasis-Superlegierung
Title (fr)
Support d'enregistrement d'informations optiques, substrat et procédé de fabrication pour le support d'enregistrement d'informations optiques
Publication
Application
Priority
CH 14332008 A 20080908
Abstract (en)
A cobalt-base super alloy contains (in wt.%) tungsten (25-28, preferably 26), aluminum (3-8, preferably 3.4), tantalum (0.5-6, preferably 5.1), molybdenum (0-3, preferably 2.8), carbon (0.01-0.2, preferably 0.2 or 0.02), hafnium (0.01-0.1, preferably 0.1 or 0.02), boron (0.001-0.05, preferably 0.05 or 0.002), silicon (0.01-0.1, preferably 0.1 or 0.01) and remainder of cobalt, and unavoidable impurities.
Abstract (de)
Die Erfindung betrifft eine Kobaltbasis-Superlegierung mit folgender chemischer Zusammensetzung (Angaben in Gew. -%): 25-28 W, 3-8 Al, 0.5-6 Ta, 0-3 Mo, 0.01-0.2 C, 0.01-0.1 Hf, 0.001-0.05 B, 0.01-0.1 Si, Rest Co und herstellungsbedingte Verunreinigungen. Diese Superlegierung ist durch ³'-Ausscheidungen und weitere Ausscheidungsmechanismen verfestigt und weist neben guten Oxidationseigenschaften u.a. verbesserte Festigkeitswerte bei hohen Temperaturen gegenüber aus dem Stand der Technik bekannten Kobaltbasis-Superlegierungen auf.
IPC 8 full level
C22C 19/07 (2006.01)
CPC (source: EP US)
C22C 19/07 (2013.01 - EP US)
Citation (applicant)
- D.H. PING ET AL.: "Microstructural Evolution of a Newly Developed Strengthened Co-base Superalloy", VACUUM NANOELECTRONICS CONFERENCE, 2006
- "50th International Field Emission Symposium.", IVNC/IFES 2006, TECHNICAL DIGEST. 19TH INTERNATIONAL, July 2006 (2006-07-01), pages 513 - 514
- AKANE SUZUKI; GARRET C. DE NOLF; TRESA M. POLLOCK: "High Temperature Strength of Co-based y/y- Superalloys", MATER. RES. SOC. SYMP. PROC., vol. 980, 2007
Citation (search report)
- [A] EP 1925683 A1 20080528 - JAPAN SCIENCE & TECH AGENCY [JP]
- [A] GB 1516795 A 19780705 - UNITED TECHNOLOGIES CORP
- [DA] AKANE SUZUKI ET AL: "High temperature strength of Co-based gamma/gamma' superalloys", MAT. RES. SYMP, MATERIALS RESEARCH SOCIETY, USA, vol. 980, 1 January 2007 (2007-01-01), pages 499 - 504, XP009108271, ISBN: 978-1-55899-828-5
- [A] SATO J ET AL: "Cobalt-Base High-Temperature Alloys", SCIENCE, AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, WASHINGTON, DC; US, vol. 312, no. 5770, 7 April 2006 (2006-04-07), pages 90 - 91, XP009108280, ISSN: 0036-8075
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 MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2163656 A1 20100317; EP 2163656 B1 20111228; AT E539174 T1 20120115; CA 2677574 A1 20100308; CA 2677574 C 20161025; CH 699456 A1 20100315; CN 101671785 A 20100317; CN 101671785 B 20170412; JP 2010065319 A 20100325; US 2010061883 A1 20100311; US 8764919 B2 20140701
DOCDB simple family (application)
EP 09168496 A 20090824; AT 09168496 T 20090824; CA 2677574 A 20090903; CH 14332008 A 20080908; CN 200910173389 A 20090908; JP 2009201623 A 20090901; US 55462409 A 20090904