Stress Field, Dilatation and Solute Saturation of a Ledged Edge Dislocation Wall

The stress field, dilatation and solute saturation of a ledged edge dislocation wall are analyzed. Explicit expressions are given. It is shown that the saturation of solute atoms around a ledged wall increases with the increase of the ledge height. When the ledge height is equal to the spacing between dislocations, the saturation is higher by an order of magnitude than that of a ledge-free dislocation wall.