Physical Metallurgy of Beta Titanium Alloys.

Abstract

Phase equilibria have been determined for Ti-(V, Mo, Cr) system with Cr additions up to 10 wt pct. The results indicate composition ranges where the equilibrium phase is beta, as-cast alloys are ductile enough to be cold worked and where the tendency to lose ductility during heat treatment due to oxygen segregation is minimal. An investigation of the effect of adding Al and Si to beta alloys indicates that yield stress and Young's modulus are increased while density and ductility are decreased. It appears that Al increases the ductile brittle transition temperature. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 30, 1979
Accession Number
ADA070042

Entities

People

  • Stephen M. Copley

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Chemical Analysis
  • Crystal Structure
  • Diffraction
  • Ductile Brittle Transition
  • Ductility
  • Grain Boundaries
  • Grain Size
  • High Temperature
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Physical Metallurgy
  • Solid Solutions
  • Titanium Alloys
  • Transition Temperature
  • Turbines

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.