A STUDY OF TUNGSTEN ALLOYS FOR ROCKET NOZZLES.

Abstract

Cast and extruded tungsten and various cast and extruded tungsten alloys were studied for suitability as rocket nozzles under severe operating conditions, including restart. The effects of the principal variables including alloy additions, carbon content, grain size, mechanical working and heat treatment on the properties were studied. The study techniques included microscopy, fractography, transmission electron microscopy, electron reflection microscopy, instrumented bend tests, microstrain tests, and rocket motor tests. A correlation of these variables with properties and nozzle performance was obtained. A cast tungsten-0.15% hafnium alloy was relatively unaffected by three repetitive nozzle firings under severe test conditions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1966
Accession Number
AD0813497

Entities

People

  • A. Lawley
  • E. L. Olcott
  • J. Meakin

Organizations

  • ARCO

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Electron Microscopy
  • Gas Turbine Nozzles
  • Grain Size
  • Hafnium Alloys
  • Heat Treatment
  • Mechanical Working
  • Microscopy
  • Nozzles
  • Rocket Engines
  • Rocket Nozzles
  • Rockets
  • Transmission Electron Microscopy
  • Tungsten
  • Tungsten Alloys

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Rocket Propulsion.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics