Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Patent · Fri Dec 31 23:00:00 EST 1993

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: LOCKHEED MARTIN ENRGY SYST INC
• 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

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