Figure 7
Activation stresses of the prismatic <a> slip, basal <a> slip, \(\{11\bar{2}2\}\) contraction twinning, and \(\{10\bar{1}2\}\) extension twinning as a function of θ. Here, σ1 is the radial stress, θ1 is the angle between the c-axis and σ1, σ2 is the circumferential stress, θ2 is the angle between the c-axis and σ2, β is the angle between σ1 and TD, and γ is the angle between the c-axis and TD.
