Discrimination and mapping of phase distributions by automated crystal orientation measurement

Automated crystal orientation measurement/mapping (ACOM) in the SEM enables a fast phase discrimination and the automated acquisition of phase distrib ution maps at submicrometre resolution, if the phases belong to different L aue groups or if their lattice constants are at least significantly differe nt. The database can further be used for quantitative determination of phas e contents, phase boundary characterisation, and mesoscale texture analysis for each phase, such as crystal orientation mapping (COM), texture analysi s (orientation density function, pole figures, misorientation distribution function), characterisation of grain and phase boundaries, and orientation stereology. MST/4796.