EP 3772544 A4 20211208 - METHOD FOR MANUFACTURING SUPER-REFRACTORY NICKEL-BASED ALLOY AND SUPER-REFRACTORY NICKEL-BASED ALLOY
Title (en)
METHOD FOR MANUFACTURING SUPER-REFRACTORY NICKEL-BASED ALLOY AND SUPER-REFRACTORY NICKEL-BASED ALLOY
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER HOCHFEUERFESTEN LEGIERUNG AUF NICKELBASIS UND HOCHFEUERFESTE LEGIERUNG AUF NICKELBASIS
Title (fr)
PROCÉDÉ DE FABRICATION D'UN ALLIAGE À BASE DE NICKEL SUPER-RÉFRACTAIRE ET ALLIAGE À BASE DE NICKEL SUPER RÉFRACTAIRE
Publication
Application
Priority
- JP 2018039400 A 20180306
- JP 2019006991 W 20190225
Abstract (en)
[origin: US2020377987A1] A method for manufacturing a super-refractory nickel-based alloy with a constituent composition such that the gamma-prime average precipitation quantity at 700° C. is at least 35 mol % includes a preparation step in which a material with a crystal grain diameter of 200 μm or less is manufactured by hot extrusion and a processing step in which this material is subjected to cold plastic processing with a processing rate of at least 30%. The cold plastic processing can be performed a plurality of times with a cumulative processing rate of at least 30%, and heat treatment is not performed between instances of cold plastic processing. The super-refractory nickel-based alloy can have a linear organization of a gamma phase and a gamma-prime phase or can include a carbide aggregated in an isometric crystal organization that includes a gamma phase and a gamma-prime phase.
IPC 8 full level
C22F 1/10 (2006.01); B21C 23/00 (2006.01); B21C 37/04 (2006.01); C22C 1/02 (2006.01); C22C 19/05 (2006.01); C22F 1/00 (2006.01)
CPC (source: EP US)
B21C 23/001 (2013.01 - EP); B21C 23/002 (2013.01 - EP); B21C 37/04 (2013.01 - EP); B21C 37/045 (2013.01 - EP); C22C 1/023 (2013.01 - EP); C22C 19/056 (2013.01 - EP US); C22C 19/057 (2013.01 - EP US); C22F 1/10 (2013.01 - EP US)
Citation (search report)
- [X] US 3639179 A 19720201 - REICHMAN STEVEN H, et al
- [X] US 4481047 A 19841106 - WINFREE JULES P [US], et al
- [XY] EP 3023509 A1 20160525 - MITSUBISHI HITACHI POWER SYS [JP]
- [XY] JP 2015187304 A 20151029 - SEIKO INSTR INC, et al
- [XI] US 5413752 A 19950509 - KISSINGER ROBERT D [US], et al
- [X] US 4957567 A 19900918 - KRUEGER DANIEL D [US], et al
- [Y] EP 3287209 A1 20180228 - HITACHI METALS LTD [JP]
- [XP] WO 2018155446 A1 20180830 - HITACHI METALS LTD [JP] & EP 3587606 A1 20200101 - HITACHI METALS LTD [JP]
- See references of WO 2019172000A1
Designated contracting state (EPC)
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
DOCDB simple family (publication)
US 2020377987 A1 20201203; CN 111868287 A 20201030; EP 3772544 A1 20210210; EP 3772544 A4 20211208; JP 2019218632 A 20191226; JP 6610846 B1 20191127; JP 6889418 B2 20210618; JP WO2019172000 A1 20200416; WO 2019172000 A1 20190912
DOCDB simple family (application)
US 201916970498 A 20190225; CN 201980017214 A 20190225; EP 19764769 A 20190225; JP 2019006991 W 20190225; JP 2019146634 A 20190808; JP 2019538269 A 20190225