Stacking fault energy, yield stress anomaly, and twinnability of Ni<sub>3</sub>Al: A first principles study<xref ref-type="fn" rid="cpb150028fn1">*</xref>

Stacking fault energy, yield stress anomaly, and twinnability of Ni₃Al: A first principles study*

Liu Li-Li^a), Wu Xiao-Zhi†^a),^b), Wang Rui^a), Li Wei-Guo^c), Liu Qing‡^b)

A schematic representation of the geometry employed to explain the operations leading to the formation of the complex stacking fault and deformation twinning: (a) perfect structure, (b) complex stacking fault structure imposed by the first displacement operation: layers numbered 6–10 in the upper part, (c) two-layer pseudo twinning structure imposed by the second displacement operation: layers 1–5 in similar fashion. All configurations are separated from the rest by a vacuum.