cryogenic rolling or "", is one of the potential techniques to produce nanostructured bulk materials from its bulk counterpart at cryogenic temperatures. it can be defined as rolling that is carried out at cryogenic temperatures. nanostructured materials are produced chiefly by severe plastic deformation processes. the majority of these methods require large plastic deformations (strains much larger than unity). in case of cryorolling, the deformation in the strain hardened metals is preserved as a result of the suppression of the dynamic recovery. hence large strains can be maintained and after subsequent annealing, ultra-fine-grained structure can be produced.