Fatigue and Fracture of Titanium Aluminides

Abstract

Future tactical aircraft engine designs depend heavily on advanced materials technology to meet thrust-to-weight and durability goals. Several types of materials currently under development are candidates for use in these advanced engines, including intermetallic titanium aluminides. Titanium aluminide alloys offer low density, high specific strength, and elevated temperature capabilities. If the materials are used in major structural and rotating components, these properties could significantly increase-engine thrust-to-weight ratio. Monolithic titanium aluminides are currently being evaluated for static components where they offer strength and stiffness advantages at temperatures above conventional titanium alloy capability.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1990
Accession Number
ADA226737

Entities

People

  • B. A. Cowles
  • D. P. Deluca
  • F. K. Haake
  • K. P. Holland

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Chemistry
  • Coatings
  • Creep
  • Crystal Structure
  • Fracture (Mechanics)
  • Material Degradation Processes
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Plastic Explosives
  • Stress Corrosion
  • Stresses
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design