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1. EP2602336 - NICKEL ALLOY

Office European Patent Office
Application Number 11839651
Application Date 09.11.2011
Publication Number 2602336
Publication Date 12.06.2013
Publication Kind B1
IPC
C22C 19/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
B22F 1/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
C22C 1/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making non-ferrous alloys
04by powder metallurgy
CPC
C22C 30/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
30Alloys containing less than 50% by weight of each constituent
C22C 1/0433
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
1Making alloys
04by powder metallurgy
0433Nickel- or cobalt-based alloys
C22C 19/056
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
051and Mo or W
056with the maximum Cr content being at least 10% but less than 20%
C22C 19/057
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
051and Mo or W
057with the maximum Cr content being less 10%
Applicants HONDA MOTOR CO LTD
NAT INST FOR MATERIALS SCIENCE
Inventors GU YUEFENG
YOKOKAWA TADAHARU
KOBAYASHI TOSHIHARU
OSADA TOSHIO
FUJIOKA JUNZO
HARADA HIROSHI
NAGAHAMA DAISUKE
KIKUCHI YUSUKE
Designated States
Priority Data 2010251967 10.11.2010 JP
2011075861 09.11.2011 JP
Title
(DE) NICKELLEGIERUNG
(EN) NICKEL ALLOY
(FR) ALLIAGE DE NICKEL
Abstract
(EN)
There is provided a nickel alloy having an excellent creep strength as well as high-temperature oxidation resistance. The nickel alloy of the present invention comprises, by mass percent, Cr in a range of 11.5 to 11.9%, Co in a range of 25 to 29%, Mo in a range of 3.4 to 3.7%, W in a range of 1.9 to 2.1%, Ti in a range of 3.9 to 4.4%, Al in a range of 2.9 to 3.2%, C in a range of 0.02 to 0.03%, B in a range of 0.01 to 0.03%, Zr in a range of 0.04 to 0.06%, Ta in a range of 2.1 to 2.2%, Hf in a range of 0.3 to 0.4%, and Nb in a range of 0.5 to 0.8%, the balance being Ni and unavoidable impurities, and contains carbides and borides precipitating in crystal grains and at grain boundaries.

(FR)
L'invention concerne un alliage de nickel résistant à l'oxydation à haute température et avec une excellente résistance au fluage. Ledit alliage de nickel comprend, en pourcentage massique, 11,5-11,9 % de Cr, 25-29 % de Co, 3,4-3,7 % de Mo, 1,9-2,1 % de W, 3,9-4,4 % de Ti, 2,9-3,2 % d'Al, 0,02-0,03 % de C, 0,01-0,03 % de B, 0,04-0,06 % de Zr, 2,1-2,2 % de Ta, 0,3-0,4 % de Hf, 0,5-0,8 % de Nb, le solde étant du nickel et les inévitables impuretés. Il comporte un carbure et un borure précipités à l'intérieur des grains cristallins et aux joints de grains.