Key points are not available for this paper at this time.
Abstract A definition of the self-stress of a dislocation is proposed which is closely related to the more usual notion of a line tension. The definition enables a numerical calculation to be made of the shape of extended nodes in dislocation networks, and such a calculation leads to revised values of the stacking-fault energies of alloys. It is found that (to within the scatter usual in these measurements) the values of stacking-fault energy deduced by Howie and Swann (1961) must be multiplied by 2·3.
L. M. Brown (Tue,) studied this question.