Abstract:Cold forming is usually associated with the "work hardening" of the material being formed. The work hardening behavior of metals subject to complex processing paths is different from that in monotonic deformation. The results show that, after some initial hardening, there is a possibility that further deformation will cause softening in the material ("work softening"). Recent work showed that cyclic torsion applied to drawn products causes changes in the subsequent tensile behavior of low carbon steel, and tha… Show more
“…The available results cover various sheet processing routes [11][12][13][14], compression after extrusion [15], bar drawing followed by tension [16][17][18], successive shearing at various directions [19], and monotonic straining followed by cyclic straining and vice versa [20][21][22][23]. Strain path changes can lead to increased or decreased flow stresses and strainhardening rates (including strain-softening) in relation to the behavior of the material before the strain path change.…”
“…The available results cover various sheet processing routes [11][12][13][14], compression after extrusion [15], bar drawing followed by tension [16][17][18], successive shearing at various directions [19], and monotonic straining followed by cyclic straining and vice versa [20][21][22][23]. Strain path changes can lead to increased or decreased flow stresses and strainhardening rates (including strain-softening) in relation to the behavior of the material before the strain path change.…”
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