The effect of wire drawing speed on the dislocation cell size and yield strength in pure aluminum

Abstract

Pure aluminum wires of 9.25 mm diameter have been drawn at room temperature up to a true wire drawing strain of 2.09 at four different speeds (139.7, 84.7, 42.3 and 16.9 mm s −1). The yield strengths of these drawn wires indicate alternate hardening and softening during wire drawing and are insensitive to wire drawing speeds. The cell sizes are also not affected by the wire drawing speeds even though they decrease with increase in true wire drawing strain.