High-temperature fabricable nickel-iron aluminides

Patent · Tue Feb 02 00:00:00 EST 1988

OSTI ID:866489

Liu, Chain T ^[1]

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1. Oak Ridge, TN

Nickel-iron aluminides are described that are based on Ni.sub.3 Al, and have significant iron content, to which additions of hafnium, boron, carbon and cerium are made resulting in Ni.sub.3 Al base alloys that can be fabricated at higher temperatures than similar alloys previously developed. Further addition of molybdenum improves oxidation and cracking resistance. These alloys possess the advantages of ductility, hot fabricability, strength, and oxidation resistance.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 4722828
• Application Number: 06/730,602
• OSTI ID: 866489
• Country of Publication: United States
• Language: English

Related Subjects

high-temperature
fabricable
nickel-iron
aluminides
described
based
significant
iron
content
additions
hafnium
boron
carbon
cerium
resulting
base
alloys
fabricated
temperatures
similar
previously
developed
addition
molybdenum
improves
oxidation
cracking
resistance
possess
advantages
ductility
hot
fabricability
strength
base alloy
base alloys
nickel-iron aluminides
oxidation resistance
iron aluminide
nickel-iron aluminide
iron aluminides
alloys possess
iron content
/420/