(19)
(11) EP 2 721 188 A1

(12)

(43) Date of publication:
23.04.2014 Bulletin 2014/17

(21) Application number: 12800643.4

(22) Date of filing: 18.05.2012
(51) International Patent Classification (IPC): 
C22C 16/00(2006.01)
C22F 1/18(2006.01)
(86) International application number:
PCT/US2012/038471
(87) International publication number:
WO 2012/173738 (20.12.2012 Gazette 2012/51)
(84) Designated Contracting States:
AL 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 RS SE SI SK SM TR

(30) Priority: 16.06.2011 US 201113161563

(71) Applicant: Westinghouse Electric Company LLC
Cranberry Township, PA 16066 (US)

(72) Inventors:
  • FOSTER, John, P.
    Bluffton, SC 29909 (US)
  • COLBURN, David
    Ogden, UT 84403 (US)
  • COMSTOCK, Robert
    Irwin, PA 15642 (US)
  • COOK, Terrence
    Riverdale, UT 84405 (US)
  • DAHLBACK, Mats
    S-72476 Vasteras (SE)
  • GARDE, Anand
    Columbia, SC 29229 (US)
  • JOURDAIN, Pascal
    S-72243 Vasteras (SE)
  • KESTERSON, Ronald
    Columbia, SC 29212 (US)
  • MCCLARREN, Michael
    New Alexandria, PA 15670 (US)
  • NUHFER, Dianna, Lynn Svec
    Pittsburgh, PA 15238 (US)
  • PAN, Guirong
    Sumter, SC 29150 (US)
  • MUNDORFF, Jonna, Partezana
    Finleyville, PA 15332 (US)
  • YUEH, Hsiang, Ken
    Charlotte, NC 28277 (US)
  • BOSHERS, James, A.
    Marshville, NC 28103 (US)
  • FILE, Penney
    Lusby, MD 20657 (US)

(74) Representative: Gallo, Wolfgang 
Fleuchaus & Gallo Partnerschaft mbB Patent- und Rechtsanwälte Ludwigstrasse 26
86152 Augsburg
86152 Augsburg (DE)

   


(54) ZIRCONIUM ALLOYS WITH IMPROVED CORROSION/CREEP RESISTANCE DUE TO FINAL HEAT TREATMENTS