Fig. 4.
Normalized deformation mode map and deformation mode diagram. (A) The deformation mode map in Fig. 3 is scaled by the full-slip energy barrier, . Energy barrier trajectories are rearranged in a constrained form, which defines material-independent straight lines for each shear direction. The dimensionless parameter,
, across the center of the map defines the entire energy trajectory of a given material. (B) The parameter
enables generating a single-parameter deformation mode diagram. Critical points of
identify four different classes of materials deformation: stacking fault only (
), stacking fault with full slip (
), full slip with twinning (
), and full slip only (
).