Abstract
Using atomistic simulations, we investigated the effects of Zn on Mg alloys to reveal the mechanism underlying the good ductility and strong basal texture of Mg-Zn solid solutions at room temperature. We found that Zn can activate 〈c + a〉 slip by reducing critical resolved shear stress anisotropy among slip systems that improves ductility and that Zn has a low grain boundary segregation tendency. Because twinning and recrystallization, which have decisive effects on the texture evolution, will not be affected significantly due to the low segregation of Zn, Mg-Zn alloys are expected to yield a texture similar to that of pure Mg.
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