The deformation potential for a single dislocation, and a dislocation pile-up, in a thin surface layer was considered. It was shown that the deformation potential changed the electron work function, the surface charge of the metal, and the structure of the electrochemical double-layer. The differential capacitance method was used to measure the metal surface charge. It was found that plastic strain increased the positive charge of the metal surface. This effect reached a maximum during successive stages of strain hardening. The zero-charge potential of the metal surface was shifted towards negative values by the magnitude of the deformation potential; with the formation of an internal double layer in the metal.

Metal Surface Charge due to Deformation. E.M.Gutman: Journal of Materials Science, 1996, 31[6], 1449-54