EBSD-assisted Laue microdiffraction for microstrain analysis

Chondrule Olivine: Relationship Between Structure And Composition Using Synchrotron X-Ray Laue Microdiffraction

Microdiffraction. A.L. Butterworth, G.K. Benedix, N. Tamura, O.N. Menzies, and P.A. Bland, Space Sciences Laboratory, 7 Gauss Way, University of California, Berkeley, California 94720-7450, Dept. of Mineralogy, The Natural History Museum, Cromwell Road, London, SW7 5BD UK, IARC, Dept. of Earth Science and Engineering, Imperial College London, Prince Consort Road, London SW7 2AZ, UK. Advanced Li...

A look-up table based approach to characterize crystal twinning for synchrotron X-ray Laue microdiffraction scans

An automated method has been developed to characterize the type and spatial distribution of twinning in crystal orientation maps from synchrotron X-ray Laue microdiffraction results. The method relies on a look-up table approach. Taking into account the twin axis and twin plane for plausible rotation and reflection twins, respectively, and the point group symmetry operations for a specific crys...

Fabric Analysis of Allende Matrix Using Ebsd

Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys

Synchrotron-based Laue microdiffraction has been widely applied to characterize the local crystal structure, orientation, and defects of inhomogeneous polycrystalline solids by raster scanning them under a micro/nano focused polychromatic X-ray probe. In a typical experiment, a large number of Laue diffraction patterns are collected, requiring novel data reduction and analysis approaches, espec...

Microstrain Accumulation in Multiphase Superalloys

Four matrix-phase crystallographic directions of IN718 are investigated by in-situ tensile tests using neutron diffraction. The elastic diffraction constants for all directions measured are compared to theoretical values calculated by the Kröner model. The differences between the microscopic and the macroscopic material response are given. The accumulation of microstrains in the different cryst...