DISPERSON-STRENGTHENED VANADIUM ALLOYS

Abstract

Arc-melting and powder metallurgy techniques are used to incorporate fine, refractory dispersants in vanadium-columbium base alloys in order to improve their long-time, elevated-temperature strength properties. Solution annealing and aging studies of arc-melted alloys containing hafnium or zirconium in combination with carbon indicate that the hafnium carbide phase is more stable. The hydride process was used to obtain powders of V-60w/o Cb-1w/o Ti, to which fine oxide or carbide powders were added. After blending, cold- compacting, sintering at 2800 F, and annealing at 2000 and 2400 F, specimens containing alumina and thoria exhibited a high degree of reactivity with the alloy base. Improved stability was noted in the alloys containing ceria, lanthana, yttria, hafnium carbide, and zirconium carbide.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0404100

Entities

People

  • A. L. Hess
  • F. C. Holtz
  • L. B. Richard

Organizations

  • IIT Research Institute

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Annealing
  • Arc Melting
  • Coatings
  • Contracts
  • Hardness
  • Heat Treatment
  • Illinois
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Metallurgy
  • Metals
  • North America
  • Powder Metallurgy
  • Sintering
  • Vanadium Alloys

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Surface Engineering/Surface Coating Technology.