Deformation Behavior of SiC/2014 Al Metal-Matrix Composite

Abstract

The deformation behavior of a composite composed of 25-volume-percent silicon carbide (SiC) whiskers in 2014 aluminum matrix was studied. Specimens were taken from a hot isostatically pressed cylindrical billet, then tested at various loading conditions and strain rates. Mechanical deformation of the composite was performed using tension, compression, torsion, Bauschinger effect, and fracture toughness testing. Deformation of the composite under shock loading/unloading and spallation threshold were determined. Elastic wave velocities at high pressures to 1.5 GPa and volume compression to 4.5 GPa were measured to determine the pressure dependence of elastic constants and isothermal and adiabatic equations of state. Keywords: Elastic constants; High temperature; Spallation; Metal-matrix composites; Strain rate; Fracture toughness; Shock loading; Equation of state; Deformation; Baushinger effect; Composite materials.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1989
Accession Number
ADA212095

Entities

People

  • Dattatraya P. Dandekar
  • Jibmitra Ganguly
  • John L. Green
  • Julius Frankel
  • Shun-chin Chou

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aluminum Alloys
  • Ceramic Materials
  • Composite Materials
  • Elastic Properties
  • Elastic Waves
  • Geometry
  • High Pressure
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Shear Modulus
  • Silicon Carbide
  • Strain Gages
  • Stress Strain Relations

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials