Fast Moving Edge Dislocations in Various Face‐Centered‐Cubic Metals

Calculations have been made of the shear stress produced by an edge dislocation moving on its slip plane in aluminum, copper, silver, gold, lead, and nickel. It is found that, except in the case of aluminum, the anomalous velocity range in which dislocations of like sign attract one another is very small. It is concluded that the effect of anisotropy in decreasing the extent of the anomalous velocity range is much greater in face‐centered‐cubic than in body‐centered‐cubic metals.