ON FLOW STRESS OF METALS AT LOW TEMPERATURES

The customary representation of the flow stress τ(T) by two additive components τG and τT, of which only the latter is significantly temperature dependent, is shown to lead to unlikely implications concerning the mechanism of plastic deformation. A new interpretation of the temperature dependence of τ(T) is proposed, in which τ(T)=τ(0)-τT. It accords with the view that the deformation rate is controlled by dislocation intersections. © 1969 Taylor & Francis Group, LLC.