Influence of strain rate on the substructure evolution and yield behavior of Ti-6Al-4V Metadata

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Title

  • Main Title Influence of strain rate on the substructure evolution and yield behavior of Ti-6Al-4V

Creator

  • Author: Gray, G. T., III
    Creator Type: Personal
  • Author: Follansbee, P. S.
    Creator Type: Personal

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (USA)

Date

  • Creation: 1988-01-01

Language

  • English

Description

  • Content Description: Based upon a study of the influence of strain rate on the substructure evolution and mechanical response of Ti-Al6-4V the following conclusions can be drawn: 1) The deformation substructure of Ti-6-4 is observed to depend on both temperature and strain rate. Deformation at quasi-static strain rates at 293K is characterized by planar slip bands in the alpha grains while the deformation substructure at high strain rates (e.g., 5000 s/sup )minus/1)) and at quasi-static rates at 77K consists of numerous deformation twins, )lreverse arrowbrace)1121)rreverse arrowbrace) type believed to be related to the starting texture and strain rate effects. 2) The constitutive equations based on the KocksMecking model have been successfully applied to predict the deformation response of Ti-6-4 to loading path changes involving a relatively narrow regime in strain rate and temperature. Changes in slip character or in deformation mechanism (e.g., deformation twinning) have been observed to correlate with changes in the expected flow behavior, although these results are beyond the current modeling procedures outlined in this paper. 11 refs., 6 figs
  • Physical Description: 9 pages

Subject

  • Keyword: Stresses
  • Keyword: Strain Rate
  • Keyword: Electron Microscopy
  • Keyword: Crystal Structure
  • STI Subject Categories: 36 Materials Science
  • Keyword: Titanium Base Alloys
  • Keyword: Microscopy
  • Keyword: Flow Stress
  • Keyword: Alloys
  • Keyword: Microstructure
  • Keyword: Vanadium Alloys
  • Keyword: Aluminium Alloys
  • Keyword: Deformation
  • Keyword: Titanium Alloys 360103* -- Metals & Alloys-- Mechanical Properties
  • STI Subject Categories: 360102 -- Metals & Alloys-- Structure & Phase Studies
  • Keyword: Transmission Electron Microscopy

Source

  • Conference: 6. world conference on titanium, Cannes, France, 6 Jun 1988

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE88006457
  • Report No.: LA-UR-88-604
  • Report No.: CONF-880681-2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5313795
  • Archival Resource Key: ark:/67531/metadc1072609
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