DEVELOPMENT OF A STABLE-BETA TITANIUM ALLOY.

Abstract

Tensile and bend tests were performed on the three base alloys, Ti-17V-10Cr-3A1, Ti-8Mo-8V7.5Fe-3A1 and Ti-15Mo-5Fe-3A1, containing additions of up to 5% Cu, Ni and Co. Complete replacement of Cr of Fe by Cu in the base alloys resulted in brittleness upon aging at 900F. Addition of up to 1% Si to Ti-17V-10Cr-3A1 increased tensile strength but lowered ductility after aging. Investigation of two metastable beta alloys was undertaken in the compositional range Ti-17V-(1.5 to 4)Fe-3A1 and Ti-8Mo-8V-(1 to 3)Fe-3A1 by hardness and tensile tests, and of two compositional ranges of stable non-hardening beta alloys, Ti-17V-(10 to 12)Mn-3A1 and Ti-8Mo8V-(6 to 7)Fe-3A1, by tensile, bend and impact tests. These indicated that Ti-17V-4Fe-3A1 and Ti-8Mo-8V-1Fe-3A1 were the better metastable beta alloys, and Ti-17V-11Mn-3A1 and Ti-8Mo-8V-6Fe3A1 the preferable stable alloys. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1963
Accession Number
AD0435698

Entities

People

  • D. B. Hunter

Tags

DTIC Thesaurus Topics

  • Alloys
  • Brittleness
  • Ductility
  • Hardening
  • Hardness
  • Impact Tests
  • Mechanical Properties
  • Physical Properties
  • Tensile Strength
  • Titanium
  • Titanium Alloys

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.