Anomalous slip in high-purity body-centered cubic metals (slip on a {110} plane with a small resolved shear stress) was shown to be a natural consequence of the fact, that above the so-called lower bend in the flow-stress versus temperature relationship, the elementary slip steps of the strain-rate determining a/2<111> screw dislocations occurred on {112} planes. A comparison of experiment and theory indicated that this mechanism accounted for most experimental findings.

Why Anomalous Slip in Body-Centered Cubic Metals? A.Seeger: Materials Science and Engineering A, 2001, 319-321, 254-60