Fatigue In Single Crystal Nickel Superalloys Technical Progress Report

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
Dec 01, 1992
Accession Number
ADA259191

Entities

People

  • Charles G. Annis

Organizations

  • Pratt & Whitney

Tags

DTIC Thesaurus Topics

  • Alloys
  • Chemistry
  • Cracks
  • Crystals
  • Dynamics
  • Fracture (Mechanics)
  • Gas Turbines
  • Grain Boundaries
  • Heat Treatment
  • High Temperature
  • Materials
  • Mechanics
  • Propulsion Systems
  • Resistance
  • Single Crystals
  • Turbine Blades
  • Turbines

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Theoretical Analysis.