Figure 4: Illustration of the slip/twin plane geometry relative to the specimen rolling geometry for C-oriented copper grains.
From: The critical role of grain orientation and applied stress in nanoscale twinning
A leading partial dislocation is emitted from a phase boundary (top surface) and trails a stacking fault along the slip/twin plane. Whether the driving force for twinning or slip is favoured depends on the magnitude of Ï„max and the angles between the direction of Ï„max and the potential twinning and trailing slip partial dislocation Burgers vectors. Specimen axes refer to the rolled plate ND, RD and TD.
