EP 2126152 A2 20091202 - PROCESSING METHOD FOR CRACKING DESENSITISATION USING A NICKEL BASED ALLOY ENVIRONMENT, MAINLY FOR A NUCLEAR REACTOR FUEL ASSEMBLY AND FOR A NUCLEAR REACTOR, AND PART MADE OF THE ALLOY THUS PROCESSED
Title (en)
PROCESSING METHOD FOR CRACKING DESENSITISATION USING A NICKEL BASED ALLOY ENVIRONMENT, MAINLY FOR A NUCLEAR REACTOR FUEL ASSEMBLY AND FOR A NUCLEAR REACTOR, AND PART MADE OF THE ALLOY THUS PROCESSED
Title (de)
VERFAHREN FÜR RISSDESENSIBILISIERUNG MITTELS LEGIERUNGSUMGEBUNG AUF NICKELBASIS, HAUPTSÄCHLICH FÜR EIN KERNBRENNSTABBÜNDEL UND FÜR EINEN KERNREAKTOR SOWIE AUS DERARTIG VERARBEITETER LEGIERUNG HERGESTELLTES TEIL
Title (fr)
PROCEDE DE TRAITEMENT THERMIQUE DE DESENSIBILISATION A LA FISSURATION ASSISTEE PAR L'ENVIRONNEMENT D'UN ALLIAGE A BASE NICKEL, NOTAMMENT POUR ASSEMBLAGE DE COMBUSTIBLE DE REACTEUR NUCLEAIRE ET POUR REACTEUR NUCLEAIRE, ET PIECE REALISEE EN CET ALLIAGE AINSI TRAITE
Publication
Application
Priority
- FR 2007002006 W 20071206
- FR 0611538 A 20061229
Abstract (en)
[origin: FR2910912A1] Process for heat treatment for crack desensitizing assisted by a nickel (Ni)-based alloy environment of composition comprising (in wt.%) e.g. carbon (C) (= 0.10), manganese (Mn) (= 0.5), silicon (Si) (= 0.5), phosphorus (P) (= 0.015), sulfur (S) (= 0.015), Ni (>= 40), chromium (Cr) (12-40), cobalt (Co) (= 10), aluminum (Al) (= 5), molybdenum (Mo) (0.1-15), titanium (Ti) (= 5), boron (B) (= 0.01), copper (Cu) (= 5), and tungsten (W) (0.1-15 ), comprises maintaining the alloy at 950-1160[deg] C in an atmosphere containing 100 ppm of hydrogen mixed with neutral gas or in pure hydrogen. Process for heat treatment for crack desensitizing assisted by a nickel (Ni)-based alloy environment of composition comprising (in wt.%), carbon (C) (= 0.10), manganese (Mn) (= 0.5), silicon (Si) (= 0.5), phosphorus (P) (= 0.015), sulfur (S) (= 0.015), Ni (>= 40), chromium (Cr) (12-40), cobalt (Co) (= 10), aluminum (Al) (= 5), molybdenum (Mo) (0.1-15), titanium (Ti) (= 5), boron (B) (= 0.01), copper (Cu) (= 5), tungsten (W) (0.1-15 ), niobium (Nb) (0-10), tantalum (Ta) (= 10), and the remainder of iron (Fe), and unavoidable impurities obtained by elaboration, comprises maintaining the alloy at 950-1160[deg] C in an atmosphere containing 100 ppm of hydrogen mixed with neutral gas or in pure hydrogen. Independent claims are included for: (1) a manufacturing process of a piece of Ni-based alloy composition, comprising the heat treatment of crack desensitization assisted by the alloy environment; and (2) a part made of a Ni-based alloy, where the alloy is subjected to the heat treatment of desensitization.
IPC 8 full level
C21D 1/74 (2006.01); C21D 3/02 (2006.01); C21D 6/00 (2006.01); C22C 19/05 (2006.01); C22F 1/02 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP KR US)
C21D 1/74 (2013.01 - EP KR US); C21D 3/02 (2013.01 - EP KR US); C21D 6/004 (2013.01 - EP US); C22C 19/05 (2013.01 - KR); C22F 1/10 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2008081118A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2910912 A1 20080704; FR 2910912 B1 20090213; CN 101600814 A 20091209; CN 101600814 B 20111116; EP 2126152 A2 20091202; EP 2126152 B1 20200108; ES 2771352 T3 20200706; JP 2010515041 A 20100506; JP 5268942 B2 20130821; KR 20090110298 A 20091021; KR 20140114455 A 20140926; TW 200840877 A 20081016; US 2010116383 A1 20100513; US 8470106 B2 20130625; WO 2008081118 A2 20080710; WO 2008081118 A3 20080821; ZA 200904415 B 20101027
DOCDB simple family (application)
FR 0611538 A 20061229; CN 200780050975 A 20071206; EP 07871802 A 20071206; ES 07871802 T 20071206; FR 2007002006 W 20071206; JP 2009543491 A 20071206; KR 20097013615 A 20071206; KR 20147024089 A 20071206; TW 96147055 A 20071210; US 44858807 A 20071206; ZA 200904415 A 20090624