Titanium is hot, but can it stand the heat. [For jet turbines and hypersonic aircraft]

Journal Article · Sat Jun 01 04:00:00 EDT 1991 · Aerospace America; (United States)

OSTI ID:5242228

Brown, A S

Titanium aluminides, a new class of intermetallics with ceramic-like properties, that could change the shape of future jet turbines and hypersonic aircraft, are described. These intermetallics are alloyed from two lightweight metals, as opposed to superalloys, the current compressor leaders, which are primarily nickel, cobalt, or iron. Thus, aluminides show immediate promise of much lower mass than superalloys. Metallurgists can alloy and thermochemically process Ti3Al, the most fully developed of the aluminides, to achieve 3-5 percent room-temperature ductility. Consideration is given to other titanium alloys that show promise for application in an engine or on the skin of a hypersonic aircraft.

• OSTI ID: 5242228
• Journal Information: Aerospace America; (United States), Journal Name: Aerospace America; (United States) Vol. 29; ISSN AEAME; ISSN 0740-722X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360100* -- Metals & Alloys
360103 -- Metals & Alloys-- Mechanical Properties
AIRCRAFT
ALLOYS
ALUMINIUM ALLOYS
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CRYSTAL GROWTH
CRYSTALS
DUCTILITY
INTERMETALLIC COMPOUNDS
MASS
MATERIALS
MECHANICAL PROPERTIES
METALLURGY
MONOCRYSTALS
SILICON CARBIDES
SILICON COMPOUNDS
TENSILE PROPERTIES
TITANIUM ALLOYS
USES