An overview of the structural capability of available gamma titanium aluminide alloys

Book · Sat Dec 30 23:00:00 EST 1995

OSTI ID:225157

Larsen, J M; Worth, B D; Balsone, S J ^[1]; Jones, J W ^[2]

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1. Wright Lab., Wright-Patterson AFB, OH (United States). Materials Directorate
2. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science and Engineering

TiAl-base, gamma titanium aluminide alloys exhibit high temperature mechanical properties that make them attractive candidates for a variety of applications in advanced turbine engines. This paper presents an overview of the capability of available gamma titanium aluminide alloys in both cast and wrought forms. Emphasis is given to cyclic properties that will govern component life under anticipated usage in gas turbine engines. The roles of fatigue crack initiation and growth are examined, and approaches for life prediction are discussed. An attempt is made to assess the strengths and limitations of these materials with respect to application requirements.

• OSTI ID: 225157
• Report Number(s): CONF-950201--; ISBN 0-87339-304-X
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CHROMIUM ALLOYS
CRACK PROPAGATION
CRACKS
DEFECTS
EXPERIMENTAL DATA
FATIGUE
FRACTURE MECHANICS
FRACTURE PROPERTIES
GAS TURBINE ENGINES
GRAIN SIZE
INTERMETALLIC COMPOUNDS
LAMELLAE
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NIOBIUM ALLOYS
SERVICE LIFE
STRESSES
TITANIUM ALLOYS
TUNGSTEN ALLOYS