FABRICATION AND PROPERTIES OF TUNGSTEN AND TUNGSTEN ALLOY SINGLE CRYSTALS

Abstract

Efforts were made to evaluate the fabricability and properties of W and W alloy single crystals. Approximately 60 crystals were prepared with diameters from 1/2 to 1 in. and lengths ranging fro 6 to 1 inches. Included in the program are several dilute alloys. The majority of crystals was successfully swaged, forged or rolled at temperatures far below those required to fabricate polycrystalline W. The influence of composition and orientation is currently being examined. The following properties are being determined on the fabricated material: hot hardness, recrystallization temperature, mechanical properties at elevated temperatures, and ductile to brittle transition temperature.

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Document Details

Document Type
Technical Report
Publication Date
Oct 05, 1961
Accession Number
AD0264413

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemical Composition
  • Crystal Structure
  • Crystals
  • Fabrication
  • Grain Boundaries
  • Hardness
  • High Temperature
  • Materials
  • Materials Engineering
  • Mechanical Properties
  • Navy
  • Refractory Metals
  • Surface Properties
  • Transition Temperature
  • Transitions
  • Tungsten Alloys

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy