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
Feb 16, 1993
Accession Number
ADA261742

Entities

People

  • Daniel P. Deluca

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Boundaries
  • Crack Propagation
  • Crystals
  • Fracture (Mechanics)
  • Grain Boundaries
  • Heat Treatment
  • Materials
  • Mechanics
  • Nickel
  • Nickel Aluminide
  • Probability
  • Propulsion Systems
  • Single Crystals
  • Temperature Gradients
  • Transitions
  • Turbines

Readers

  • Computer Science.
  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.