Abstract
Equal-channel angular processing (ECAP) is an efficient method of refining grain size via severe plastic deformation. The ECAP technique retains the size and shape of the billet, induces large cumulative strains in the material, and develops different microstructures. A description of plastic deformation during ECAP in the rigid plastic approach is provided. A survey of experimental and finite-element modeling (FEM) results is presented with regard to the plastic deformation zone (PDZ) formation, which includes the effect of materials properties on the metal flow through the ECAP die.
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