Wear during Rubbing of a Sintered Metal Powder Body.

Abstract

Rub interactions were carried out between an abradable nickel-chromium seal material and titanium alloy blades at slow speeds. Square-ended and negative rake angles blades with blade tip lays parallel and perpendicular to rubbing were fed at six different rates ranging from 0.16 to 100 x .000001 m/pass. The specific energy of seal material displacement increased substantially with feed. A relationship between feed and specific energy of seal material displacement was suggested. The modulus of elasticity of the seal material was found to vary with strain. Results from tensile tests accomplished during this work were combined with data from compression tests to derive a relationship between modulus of elasticity and strain. Based on the results of these tests, it is suggested that the primary mechanism of seal material wear was fatigue.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA132354

Entities

People

  • John R. Rogacki

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Ceramic Materials
  • Compressors
  • Cutting Tools
  • Friction
  • Geometry
  • Materials
  • Measurement
  • Mechanical Engineering
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Photographic Equipment
  • Powder Metals
  • Stress Strain Relations
  • Turbine Blades
  • Turbines
  • Wear Resistance

Readers

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