A strain analysis was made of an edge dislocation core with regard to the Foreman dislocation model. In order to test the model, quantitative measurements of the strain field around an edge dislocation in aluminium was performed, and high-resolution transmission electron microscopy and geometrical phase analysis were used to map the strain field of the edge dislocation core in aluminium. The strain measurements were compared with the Foreman dislocation model; showing that they were in good agreement with each other for 0.7 < a < 1.5.

Experimental Verification of Foreman Dislocation Model. C.W.Zhao, Y.M.Xing, P.C.Bai: Chinese Physics B, 2009, 18[6], 2464-8