Estimation of the Full Nye Tensor by EBSD-Based Dislocation Microscopy
An extension to a previously published, novel stereological method is reported which infers experimentally inaccessible components of the Nye GND tensor. Limitations imposed by electron-opacity of metals prevent direct measurement of four components of the Nye tensor, but it is possible to use additional experimentally-obtainable information in connection with underlying field equilibrium equations to estimate these additional components. This approach uses derivatives to the infinitesimal elastic distortion tensor to reduce error imposed by pattern center inaccuracy.
Asim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar and Arunansu Haldar
T. Hardin et al., "Estimation of the Full Nye Tensor by EBSD-Based Dislocation Microscopy", Materials Science Forum, Vols. 702-703, pp. 489-492, 2012