Development of Fine-Grained, Ductile Tungsten Alloys for Armor/Anti-Armor Application

Abstract

The objective of this program has been to develop and enhance the ductility of tungsten-based materials at high strain rates through the control of microstructural parameters such as grain size, distribution of phases, and texture. The technical basis for this objective is the close relationship between fine-structure and extended plasticity in metals and ceramics. To obtain a fine and equiaxed grain structure in tungsten-based materials, a number of processing routes have been evaluated under this program. Based upon a critical evaluation available processing schemes, four methods were selected to produce materials for detailed study. These processing methods included arc casting and thermomechanical processing of tungsten-based binary alloys, chemical vapor deposition, liquid phase sintering and consolidation of ultrafine powder.

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1991
Accession Number
ADA231857

Entities

People

  • J. P. Wittenauer
  • T. G. Nieh

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Activated Sintering
  • Chemical Vapor Deposition
  • Chemistry
  • Complex Systems
  • Composite Materials
  • Electron Microscopy
  • High Temperature
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Particle Size
  • Phase Diagrams
  • Powder Metallurgy
  • Solid Solutions

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.