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1. WO2014197088 - FABRICABLE, HIGH STRENGTH, OXIDATION RESISTANT NI-CR-CO-MO-AL ALLOYS

Publication Number WO/2014/197088
Publication Date 11.12.2014
International Application No. PCT/US2014/028224
International Filing Date 14.03.2014
IPC
C22C 19/05 2006.01
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
CPC
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
C22C 19/051
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
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 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
Applicants
  • HAYNES INTERNATIONAL, INC. [US]/[US]
Inventors
  • SRIVASTAVA, S. Krishna
  • PIKE, Lee
Agents
  • ALSTADT, Lynn J.
Priority Data
61/790,13715.03.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FABRICABLE, HIGH STRENGTH, OXIDATION RESISTANT NI-CR-CO-MO-AL ALLOYS
(FR) ALLIAGES HAUTE RÉSISTANCE, FACILES À ÉLABORER, À BASE DE NI-CR-CO-MO-AL RÉSISTANT À L'OXYDATION
Abstract
(EN)
Ni-Cr-Co-Mo-Al based alloys are disclosed which contain 15 to 20 wt.% chromium, 9.5 to 20 wt.% cobalt, 7.25 to 10 wt.% molybdenum, 2.72 to 3.9 wt.% aluminum, along with typical impurities, a tolerance for up to 10.5 wt.% iron, minor element additions and a balance of nickel. These alloys are readily fabricable, have high creep strength, and excellent oxidation resistance up to as high as 2100°F (1149°C). This combination of properties is useful for a variety of gas turbine engine components, including, for example, combustors.
(FR)
Cette invention concerne des alliages à base de Ni-Cr-Co-Mo-Al qui contiennent 15 à 20 % en poids de chrome, 9,5 à 20 % en poids de cobalt, 7,25 à 10 % en poids de molybdène, 2,72 à 3,9 % en poids d'aluminium, ainsi que les impuretés classiques, une tolérance jusqu'à 10,5 % en poids de fer, des ajouts d'éléments mineurs, le reste étant du nickel. Ces alliages sont faciles à élaborer, ont une résistance élevée au fluage, et une excellente résistance à l'oxydation jusqu'à 2100°F (1149°C). Cette combinaison de propriétés est utile pour divers composants de moteurs à turbines, comprenant, par exemple, des dispositifs combustor.
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