Friction and Wear Under Fretting Conditions of Materials for Use as Wire Friction Dampers of Compressor Blade Vibration

Abstract

Friction dampers are required to reduce the magnitude of vibrational stresses in high-aspect-ratio blading of compressors for advanced aircraft turbine engines. Fret ting Is a common problem with all types of friction dampers. Fretting experiments with simulated wire-lace blade damping were conducted with Inconel 600. Experiments were run with or without oxide coatings In contact with maraging steel. Although two methods were used to form the oxide, high friction and low wear occurred with both. Further wear experimentation with oxidized material rubbing against itself showed that friction and wear were decreased by operation at a higher temperature (500 deg F or 260 deg C).

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1968
Accession Number
ADA405706

Entities

People

  • Max A. Swikert
  • Robert L. Johnson

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Alloys
  • Compressor Blades
  • Frequency
  • Friction
  • High Temperature
  • Iron
  • Iron Oxides
  • Maraging Steels
  • Materials
  • Mechanical Properties
  • Metals
  • Oxide Films
  • Sodium Hydroxide
  • Solid Solutions
  • Surface Properties
  • Turbines

Readers

  • Aerodynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).