NANOSTRUCTURED MATERIALS PRODUCED BY SEVERE PLASTIC DEFORMATION

Erich Schmid Institute of Materials Science, Austrian Academy of Sciences and Institute of Metal Physics, University Leoben, Jahnstrasse 12, A-8700 Leoben, Austria [Pg.47]

Abstract Severe plastic deformation of metals leads to an extremely fine [Pg.47]

For comparison of different experiments the concepts of equivalent strain and strain efficiency are discussed. [Pg.47]

Key words Severe plastic deformation, strain path, fragmentation, geometric recovery, strain efficiency, equivalent strain [Pg.47]

The first part of this paper will deal with the problem of fragmentation , i.e., with the mechanisms leading to the fine-grained structure. The second part will deal with the efficiency of different SPD-techniques to produce such structures. [Pg.47]

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