Hot Hardness Investigation of Refractory Metals and Alloys

Abstract

The investigation was conducted to determine the hardness of several refractory metals and alloys at temperatures from 70F to 2000F. Microhardness tests were made in vacuum under controlled conditions to provide comparable screening data for predicting the strengths of these materials in high- temperature applications such as gun barrel liners. Materials tested included tungsten, molybdenum, columbium, tantalum, columbium-base alloys, and tantalum- base alloys. Chromium plate and Cr-Mo-V steel, currently used in gun barrels, were also tested for comparison.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1972
Accession Number
AD0750593

Entities

People

  • Cyrus H. Philleo
  • Donald H. Sale

Tags

DTIC Thesaurus Topics

  • Alloys
  • Chromium
  • Gun Barrel Liners
  • Gun Barrels
  • Guns
  • Hardness
  • High Temperature
  • Materials
  • Mechanical Properties
  • Molybdenum
  • Niobium
  • Refractory Materials
  • Refractory Metals
  • Tantalum
  • Tungsten
  • Vanadium
  • Weapons

Fields of Study

  • Materials science

Readers

  • Surface Engineering/Surface Coating Technology.
  • ballistics.