Abstract
Anomalous slip in high-purity bcc metals (=slip on a {110} plane with small resolved shear stress) is shown to be a natural consequence of the fact that above the ‘lower bend’ in the flow-stress–temperature relationship the elementary slip steps of the strain-rate determining 〈111〉 a 0/2 screw dislocations proceed on {112} planes. A brief comparison experiment–theory indicates that the proposed mechanism accounts for the major experimental findings.
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