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 subsequently 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
Sep 01, 1992
Accession Number
ADA256095

Entities

People

  • Charles Ann
  • Daniel P. Deluca

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Boundaries
  • Crystals
  • Energy
  • Fracture (Mechanics)
  • Grain Boundaries
  • Heat Treatment
  • Materials
  • Mechanics
  • Nickel
  • Nickel Aluminide
  • Orientation (Direction)
  • Probability
  • Propulsion Systems
  • Single Crystals
  • Space Propulsion
  • Transitions

Readers

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