Strain Compatibility and Nanostructuring of Bulk Metallic Materials via Severe Plastic Deformation

Abstract:

Nanostructured (NS) metallic materials can exhibit high strength at room temperature and superplastic properties at elevated temperatures. This enables to enhance their technological and structural properties, when producing various parts from them. For producing NS materials by severe plastic deformation (SPD), the development of effective SPD techniques for practical use is an urgent task. It is shown that solution of such a task should take into account strain compatibility on the macro-, meso- and micro-levels. Not only shear but also rotational deformation mode should be considered. Properties of NS materials and possibilities of their structural applications are considered from this point of view.

• Periodical: Materials Science Forum (Volumes 667-669)
• Pages: 45-49
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.667-669.45
• Online since: December 2010
• Authors: Farid Z. Utyashev
• Keywords: Compatibility Condition, Dislocation Density, Fragmentation, Rotational Component, Tensor of Distortion, Ultrafine-Grained State

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