Combining NPAR with spherical indexing – A unique method to solve the most challenging EBSD indexing problems 

Gatan instrument used

EDAX^® Clarity™ Plus EBSD camera, OIM Analysis™ software, and OIM Matrix™

Background

Dictionary indexing has previously shown its ability to solve challenging heavily deformed α-Ti compared with traditional Hough indexing [1]. However, dictionary indexing requires a substantial calculation process that is very time-consuming. To make it more viable for electron backscatter diffraction (EBSD) users, we developed a new algorithm called spherical indexing. Spherical indexing shows similar or even better robustness in solving difficult EBSD problems but is much more time-efficient. Moreover, EDAX NPAR™ can be integrated into the spherical indexing process in OIM Analysis 9. This extension can solve the most challenging EBSD indexing problems, quickly and accurately.