Tungsten Alloy Fabrication of Penetrator Materials

Abstract

Tungsten heavy alloy bars 1.35 inches in diameter were prepared and evaluated for uniformity of properties. Alloys contained 97.1% to 97.3% tungsten with primary emphasis on the 97.1W-1.6Ni-0.7Fe-0.5Cu-0.1Co composition. To achieve high uniform densities with this alloy, it was necessary to use fine tungsten powder (approx 1-1.5 micrometers) and slow heating rates between 1000 C and the sintering temperature. This was not necessary with similar alloys containing no copper. Tensile elongation was found to be strongly dependent on oxygen levels in the sintered bars. Low oxygen levels gave the best results with 16-17% elongation when oxygen levels were below 6 ppm. These very low oxygen levels were only achieved with alloys containing no copper.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA114187

Entities

People

  • James R. Spencer

Organizations

  • Sylvania Electric Products

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Copper
  • Dead Reckoning
  • Elements
  • Fabrication
  • Hardness
  • High Density
  • Materials
  • Mechanical Properties
  • Metals
  • Military Research
  • Particle Size
  • Particles
  • Physical Properties
  • Tensile Elongation
  • Tensile Properties
  • Tungsten

Fields of Study

  • Materials science

Readers

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