Atomistic studies of shock-induced phase transformations in single crystal iron with cylindrical nanopores

The pole figure of the c axis within the sample reference frame for the shock along the three directions. Equal area projection, contours in the number of HCP atoms with the corresponding c axis orientation. The positions which have brighter colors in each pole figure represent the main orientations of the c axis. Each point of the pole figure, corresponding to a certain c axis orientation, is colored by the number of HCP atoms with the same c axis orientation. As we can see from the first picture, for the shock along [0 0 1] direction, c axis orientation are [11¯0], [110], [1¯1¯0], [1¯10] and [101]; the second picture shows that the c axis orientation are [110], [11¯0] and [1¯10] for the shock along [1 1 0] direction; The third picture shows that the c axis orientation are [1 0 1], [1 1 0], [0 1 1], [1¯10] and [11¯0] for the shock along [1 1 1] direction.129