Investigating Strain Path Changes on Flow Stress and Microstructural Evolution in TiAl-4V Alloy During Hot Deformation

Abstract

Using the purpose built arbitrary strain path rig, hot deformation testing has been carried out on a commercial Ti-6A1-4V alloy. Initially, simple reverse torsion tests were performed, followed by tests combining torsion and uniaxial deformation. Optical and scanning electron microscopy have been used to assess the initial, heat treated and deformed structures. Bulk texture analysis has been carried out on the initial material, Electron Beam Backscattering Diffraction (EBSD) was used to assess micro-texture changes in heat-treated and deformed material.

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Document Details

Document Type
Technical Report
Publication Date
Sep 26, 2002
Accession Number
ADA407561

Entities

People

  • John Beynon

Organizations

  • University of Sheffield

Tags

DTIC Thesaurus Topics

  • Alloys
  • Chemical Composition
  • Contracts
  • Diffraction
  • Electron Microscopy
  • Electrons
  • Grain Size
  • Heat Treatment
  • Materials
  • Microscopy
  • Microstructure
  • Personal Information Managers
  • Scanning
  • Scanning Electron Microscopy
  • Steady State
  • Strain Rate
  • Titanium Alloys

Fields of Study

  • Materials science

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Directed Energy
  • Microelectronics