Development and Application of a Program for Analyzing Orientation Relationships on Electron Diffraction Patterns

Abstract

A program has been developed, which enables to analyze crystallographic orientation relationships between two or more phases by using personal computer systems on the basis of the electron diffraction. The program can draw diffraction patterns and stereographic projections for fourteen Bravais lattices and show orientation relationships by superimposing one pattern onto the other pattern. An example of analyzing in practice the orientation relationships between precipitates and a matrix in an aged alloy is shown.