Tribological Behavior of Metal Matrix Composites.

Abstract

The wear and friction behavior of continuous graphite-fiber-reinforced metal matrix composites was investigated. Composite materials were tested against 4620 steel at 54 m/sec at room temperature in air without lubricant. The graphite fibers studied included rayon-based, pitch-based, and polyacrilonitrile (PAN)-based fibers. Both high-modulus and high-strength PAN-based fibers were examined. The fibers were incorporated into Cu- and Ag- based alloys by means of a liquid metal infiltration technique. The results of this study indicate that the type of graphite fiber in the composite is the most significant factor in the wear and friction behavior of metal matrix composites. In some high-modulus fiber Sn-bronze composites fiber fraction influences wear rate, but not coefficient of friction. Neither the matrix alloy nor the composite tensile strength per se correlates with the friction and wear properties; however, there are specific trends for the various matrix alloys. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 14, 1979
Accession Number
ADA075764

Entities

People

  • E. Eliezer
  • M. F. Amateau
  • R. F. Flowers

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Corporations
  • Cosmic Rays
  • Engineering
  • Friction
  • Grain Size
  • Graphitic Materials
  • Ion Lasers
  • Liquid Metals
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Engineering
  • Metal Matrix Composites
  • Tensile Strength
  • Wear Resistance

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Surface Engineering/Surface Coating Technology.