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
Personal Author(s):
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.
Descriptors:
Subject Categories:
- Metallurgy and Metallography
- Test Facilities, Equipment and Methods
- Crystallography