A New Flow Line Function for Modeling Material Trajectory and Textures in Nonequal-Channel Angular Pressing

Figure 2

Experimental flow lines (circles, taken from reference [4]) for NECAP of Al, p/c = 2, together with the fits obtained by the newly proposed flow line function (a) (equation (3)) and by the previous function (b) (equation (2)) identified by continuous lines. The plastic deformation zone is displayed by dash-dot lines, which is limited by the zone situated between 1% and 99% of the total strain in one pass. The dotted line identifies the position of the maximum strain rate.

(a)

(b)