DEFORMATION BEHAVIOR IN METAL FIBER-METAL MATRIX COMPOSITES.

Abstract

A model system, brass-tungsten, was used to study the effect of multiple fiber necking, strain rate, and fiber surface condition on the ductility and deformation behavior of uniaxial metal matrix composites. Low volume percent (<20 v/o) composites were made using brass (90Cu-10Zn) powders and tungsten wires. Multiple necking of tungsten wires in a brass matrix was found to be a result of a load transfer from the wire to the surrounding matrix. Composite ductility was shown to increase with decreasing multiple neck spacing and increasing reduction of area at the neck and was generally independent of strain rate. The ability of metal matrix composites to undergo simple forming operations such as cold rolling and closed-die forging was also shown. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1969
Accession Number
AD0699349

Entities

People

  • Albert P. Levitt
  • Richard M. Vennett
  • Stanley M. Wolf

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Ductility
  • Fibers
  • Materials
  • Metal Fibers
  • Metal Matrix Composites
  • Metals
  • Reduction Of Area
  • Strain Rate
  • Surface Properties
  • Tungsten

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy
  • Reinforced Composite Materials

Technology Areas

  • Space