Accession Number:

ADA522124

Title:

Slip Activity in Single Grains Extracted from Polycrystalline Specimen by X-Ray Line Broadening (Preprint)

Descriptive Note:

Journal article

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH METALS BRANCH

Report Date:

2010-01-01

Pagination or Media Count:

24.0

Abstract:

Slip activity, Burgers vector populations, and dislocation densities were determined by X-ray line-profile analysis of peaks from individual grains in a bulk polycrystalline sample. The method was tested at the focused X-ray beamline ID11 at the European Synchrotron Research Facility ESRF in Grenoble, France and was applied to a bulk commercial-purity titanium specimen for which slip activity was determined for 49 single grains. The most-active slip systems were of a and ca type, and the orientation of the stresses acting on these slip systems revealed a spread due to the effect of neighborhood grains on plastic response. The new x-ray method can provide input for crystal-plasticity analyses and permits experimental verification of the results of numerical calculations which was not possible before.

Subject Categories:

  • Metallurgy and Metallography
  • Test Facilities, Equipment and Methods
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE