Advanced Turbine Engine Gas Generator (ATEGG) Fractography of Cast Nickel Base Superalloys.

Abstract

This report documents Teledyne CAE's efforts to correlate the fracture surfaces of cast nickel-base superalloys to known conditions of low cycle fatigue testing (strain range partitioning). Rene' 80 and In-100 low cycle fatigue test specimens (supplied by NASA-Lewis and TRW materials laboratories) were examined by means of scanning electron microscope (SEM). The fractography obtained with the SEM can be compared to actual engine component failures, and will provide strong indications of the metal temperature, creep conditions, strain levels, and cycles imposed, during the events leading to component failure. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1978
Accession Number
ADA061701

Entities

People

  • David F. Gray

Organizations

  • Teledyne Technologies

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Crystal Structure
  • Electron Microscopes
  • Engine Components
  • Engines
  • Fatigue Tests (Mechanics)
  • Fractography
  • Generators
  • Grain Boundaries
  • High Temperature
  • Materials
  • Materials Laboratories
  • Microscopes
  • Scanning Electron Microscopes
  • Superalloys
  • Test Methods
  • Turbine Blades
  • Turbines

Fields of Study

  • Materials science

Readers

  • Aerospace Engineering
  • Materials Science (Mechanical Engineering).

Technology Areas

  • Microelectronics