Abstract
There are a large number of approaches to a description of work hardening of metal polycrystals with various crystal lattices. In the present work, Sachs’s model is generalized to uniaxial tension/compression of polycrystalline magnesium with hexagonal densely packed crystal lattice. The tensile yield stress is estimated taking into account two deformation modes: $$ (0001)\left\langle 11\overline{2}0\right\rangle $$ easy basal slip and $$ \left(10\overline{1}2\right)\left\langle \overline{1}011\right\rangle $$ twinning.
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