Karl Franzens University Graz
Graz University of Technology
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Karl Franzens University Graz | Graz University of Technology | |
Severe plastic deformation: The generation of new submicron and nano-crystalline materials Nano-structured materials are one of the topics of modern materials science. Severe plastic deformation, SPD, is a technique, which permits to generate such materials in large quantities in a bulk shape. At first, a short introduction to the different type of techniques, their advantages and disadvantages are given. The main part of the presentation will be devoted to the structural evolution during SPD. In single phase materials a relatively uniform behaviour is observed, where deformation temperature and alloying are the dominant parameters, which control the limits in the refinement of the microstructure. The behaviour in multiphase materials or composites is more complex. However, these effects offer generations of complete new types of materials. Few examples will be presented. |