Severe Plastic Deformation Methods to Achieve Nanostructured Materials

Nanostructured materials possess interesting properties and the techniques for achieving them, have generated much interest in recent years. Severe Plastic Deformations (SPD) processes are among those techniques for generating bulk nanostructured materials; in this paper the major conventional SPD methods including High Pressure Torsion (HPT), Equal Channel Angular Pressing (ECAP), Accumulative Roll Bonding (ARB) and Constrained Groove Pressing (CGP) are reviewed. The most recent proposed SPD processes of Continuous High Pressure Torsion (CHPT) and Cone-Cone Method (CCM) are also presented. Finally, some applications of the SPD processed materials in the market are discussed.