Application and life prediction of titanium alloys in military gas turbine engines

Conference · Thu Jul 01 04:00:00 EDT 1999

OSTI ID:20013329

Cowles, B A

Since initial introduction in the 1950's, application of titanium alloys has steadily increased in aircraft gas turbine engines. The low density and high specific strength of titanium alloys have contributed significantly toward attainment of today's high thrust, lightweight, fuel-efficient engines. Today, titanium alloys comprise more than one-third of total engine weight, much of it in structurally critical parts such as fan and compressor rotors and airfoils, and engine mainframe structures. Materials processing, and structural design, durability, and life prediction practices have continuously evolved to facilitate such applications. This paper presents an overview of current titanium applications in gas turbine engines, the current durability and life prediction challenges and areas that appear significant for future applications.

• Research Organization: Pratt and Whitney, W.Palm Beach, FL (US)
• OSTI ID: 20013329
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
FATIGUE
FRACTURE MECHANICS
FUEL CONSUMPTION
GAS TURBINE ENGINES
MILITARY EQUIPMENT
RELIABILITY
SERVICE LIFE
STRESS ANALYSIS
TITANIUM ALLOYS
WEIGHT