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.

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Document Details

Document Type
Technical Report
Publication Date
Oct 15, 1993
Accession Number
ADA282917

Entities

People

  • Charles G. Annis
  • D. P. Deluca

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Crack Propagation
  • Crystals
  • Databases
  • Electron Microscopy
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Fracture (Mechanics)
  • Grain Boundaries
  • High Energy
  • High Pressure
  • Materials
  • Mechanics
  • Probability
  • Propulsion Systems
  • Temperature Gradients
  • Three Dimensional

Readers

  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design