Development of high-pressure sliding process for microstructural refinement of rectangular metallic sheets

Abstract

A new processing technique, called in this study as high-pressure sliding (HPS), was developed as a process of severe plastic deformation (SPD). It is then demonstrated that HPS can be used for grain refinement of metallic sheets with a rectangular shape which was difficult with a conventional high-pressure torsion utilizing disk samples. Application of HPS to pure A1 (99.99%) showed that the grain refinement is achieved with the extent similar to other SPD techniques. © 2009 The Japan Institute of Metals.