Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869352

Liu, Chain T ^[1]; McKamey, Claudette G ^[2]; Tortorelli, Peter F ^[2]; David, Stan A ^[2]

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1. Oak Ridge, TN
2. Knoxville, TN

The specification discloses a corrosion-resistant intermetallic alloy comprising, in atomic percent, an FeAl iron aluminide containing from about 30 to about 40% aluminum alloyed with from about 0.01 to 0.4% zirconium and from 0.01 to about 0.8% boron. The alloy exhibits considerably improved room temperature ductility for enhanced usefulness in structural applications. The high temperature strength and fabricability is improved by alloying with molybdenum, carbon, chromium and vanadium.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5320802
• OSTI ID: 869352
• Country of Publication: United States
• Language: English

Related Subjects

corrosion
resistant
iron
aluminides
exhibiting
improved
mechanical
properties
resistance
specification
discloses
corrosion-resistant
intermetallic
alloy
comprising
atomic
percent
feal
aluminide
containing
30
40
aluminum
alloyed
01
zirconium
boron
exhibits
considerably
temperature
ductility
enhanced
usefulness
structural
applications
strength
fabricability
alloying
molybdenum
carbon
chromium
vanadium
metallic alloy
temperature strength
corrosion resistance
intermetallic alloy
alloy comprising
temperature ductility
improved mechanical
atomic percent
corrosion resistant
mechanical properties
iron aluminide
aluminum alloy
specification discloses
structural applications
aluminide containing
exhibiting improved
alloy exhibits
iron aluminides
resistant iron
corrosion-resistant intermetallic
/420/