4C2 Preliminary Development of Crystal Orientation Map for EBSD by MATLAB Programming

rotatlon axls. 2.2.1.CrystalOrientation The orystal axes of a grain can be defined with respect to fixed reference axis, which is called the orientation of the grain. An Eulerian angle (pt, ip; q2) is a degree of freedom that represents a rotation about one of the coordinate axes. The relationship between the Bunge-Euler angles and a rotation rnatrix was described by Morawiec (2004) according to the fo11owing Equations [(1)-(4)]: