Corrosion resistant iron aluminides exhibiting improved mechanical properties and corrosion resistance

Patent · Tue Jun 14 00:00:00 EDT 1994

OSTI ID:7108488

Liu, C T; McKamey, C G; Tortorelli, P F; David, S A

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. 9 figs.

• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
• Patent Number(s): A; US 5320802
• Application Number: PPN: US 7-884530
• OSTI ID: 7108488
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CARBON
CHEMICAL COMPOSITION
CHROMIUM
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
ELEMENTS
FABRICATION
INTERMETALLIC COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
METALS
MOLYBDENUM
NONMETALS
TRANSITION ELEMENTS
VANADIUM
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS