Fatigue in Single Crystal Nickel Superalloys

Abstract

This program investigates the seemingly unusual behavior of single crystal airfoil materials. The fatigue initiation processes in single crystal (SC) materials are significantly more complicated and involved than fatigue initiation and subsequent behavior of a (single) macrocrack in conventional, isotropic, materials. To understand these differences is the major goal of this project. Fatigue, Fracture, Single Crystal, PWA 1480, PWA 1484.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1992
Accession Number
ADA252492

Entities

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Crystals
  • Elements
  • Fracture (Mechanics)
  • Grain Boundaries
  • Heat Treatment
  • High Pressure
  • Materials
  • Mechanics
  • Military Research
  • Nickel
  • Nickel Aluminide
  • Probability
  • Propulsion Systems
  • Rocket Engines
  • Single Crystals
  • Space Propulsion

Readers

  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.