DEVELOPMENT OF A STABLE-BETA TITANIUM ALLOY.

Abstract

The upper temperature limit for obtaining a hardness response from Ti-17V-10Cr-3Al-1Si, quenched from the beta field, was 1300-1350F. Brittleness in such alloys is partly ascribed to the large grain size, produced by the high temperatures necessary for silicide solution. Cold rolling pressure determinations were made on stable-beta alloys Ti-8Mo-8V-6Fe-3Al and Ti-17V-10Mn3Al. Tensile tests on minor compositional variations of Ti-17V-4Fe-3Al and Ti-8Mo-8V-2Fe-3Al indicated that t a high proportion of alpha stabilizing elements resulted in a faster aging response. Statistical determination of the Vickers hardness/UTS relationship showed that in both alloys 17 Vickers points equaled 10,000 psi. Complete substitution of Co for Fe in two stable-beta alloys resulted in such alloys becoming ageable. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1964
Accession Number
AD0612477

Entities

People

  • D. B. Hunter

Tags

DTIC Thesaurus Topics

  • Alloys
  • Brittleness
  • Elements
  • Grain Size
  • Hardness
  • High Temperature
  • Physical Properties
  • Titanium
  • Titanium Alloys

Fields of Study

  • Materials science

Readers

  • Mathematics or Statistics
  • Powder metallurgy of Titanium alloys.