DISPERSION STRENGTHENED ALPHA TITANIUM ALLOYS.

Abstract

The effects of silicide volume fraction, processing/heat treatment, and zirconium-compensation on the tensile, creep and creep stability properties of a Ti-6Al-3Sn-3Zr base alloy were determined. Processing/heat treatment and silicon content were shown to be dominant factors in determining creep strength. Beta heat treatments coupled with silicon contents greater than 0.3% were necessary to achieve high-temperature creep strengths superior to those of commercial titanium alloys. Internal stability was satisfactory provided the oxygen content was sufficiently low (<1500 ppm) but surface stability (air contamination) was exceptionally severe in the beta-annealed condition.

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1967
Accession Number
AD0824092

Entities

People

  • K. C. Antony

Organizations

  • General Electric

Tags

DTIC Thesaurus Topics

  • Alloys
  • Compensation
  • Contamination
  • Creep
  • Creep Strength
  • Dispersions
  • Heat Treatment
  • High Temperature
  • Mechanical Properties
  • Physical Properties
  • Titanium
  • Titanium Alloys
  • Zirconium

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Rocket Propulsion.
  • Thin Film Deposition Science.