Synthesis of Hybrid Materials by Severe Plastic Deformation: A New Paradigm of SPD Processing

An emerging direction of research into severe plastic deformation (SPD), which we refer to as SPD-induced synthesis of hybrid materials, is presented. At its core is the creation of inner structure made from various materials within the bulk of a solid. As distinct from the traditional metal forming, SPD-induced synthesis produces an engineered inner architecture of the solid without changing its exterior geometry. The possibilities of the SPD techniques with regard to materials synthesis are demonstrated. Research in this nascent area will open up new avenues for fabrication of advanced hybrid materials, while also posing a number of challenging scientific problems. A particular application discussed concerns the development of hybrid ultrafine-grained materials with enhanced structural ductility.