The Hot Hardness of Titanium and Titanium Alloys

Abstract

The hot hardness of 27 different heats of titanium and titanium alloys was studied. Tests were conducted on a modified Rockwell machine in an argon atmosphere. Results indicate that low alloy heats lose their hardnesses at a fairly high even rate. On the other hand, high alloy heats hold their hardnesses well up to about 1100 deg F, and then the hardness drops off very sharply with increasing temperature. The influence of alloying elements in promoting resistance to softening was evaluated at 900 deg F. Iron was found to be the most effective with the other elements being arranged in order of decreasing effect, as follows: manganese, molybdenum, aluminum, zirconium, and chromium.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1958
Accession Number
ADA952258

Entities

People

  • Frank R. Larson

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Contracts
  • Elements
  • Guided Missiles
  • Hardness
  • Heat Energy
  • Heat Resistant Alloys
  • Materials
  • Mechanical Properties
  • Metals
  • Munitions
  • Resistance
  • Tensile Properties
  • Tensile Strength
  • Titanium
  • Titanium Alloys

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.