Recent results of the development of the severe plastic deformation methods
to fabricate bulk nanostructured materials as well as results of their tho
rough structural characterization and investigations of their unusual defor
mation behavior and novel mechanical properties are presented. The structur
al model of nanomaterials processed by severe plastic deformation methods i
s developed on the basis of the obtained results. (C) 1999 Acta Metallurgic
a Inc.