Publication Type
Journal
Journal Name
Micron
Publication Date
Page Numbers
28 to 36
Volume
40
Issue
1
Abstract
This paper analyses local lattice rotations introduced in severely-deformed polycrystalline titanium by friction-stir welding. Nondestructive three-dimensional (3D) spatially-resolved polychromatic X-ray microdiffraction, is used to resolve the local crystal structure of the restructured surface from neighboring local structures in the sample material. The measurements reveal strong gradients of strain and geometrically-necessary dislocations near the surface and illustrate the potential of polychromatic microdiffraction for the study of deformation in complex materials systems.
