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)

The calculated generalized stacking fault energy for Ni₃Al for the temperature range 0–900 K. The discrete points denote the values of first principles calculations and the curves indicate the results from polynomial fitting. (a) Displacement along ⟨112⟩{111}( a /6^1/2), (b) displacement along ⟨112⟩{111}(6^1/2 a /3), (c) displacement along ⟨110⟩{111}(2^1/2/ a ), and (d) displacement along ⟨110⟩{010}(2^1/2 a ).