Microstructures produced – Properties
ECAP Technique Theoretical and applicative aspects

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Microstructures produced – Properties
ECAP Technique Theoretical and applicative aspects

Authors : Fayçal HADJ-LARBI, Baya ALILI, Djamel BRADAI, Anne-Laure HELBERT, Thierry BAUDIN

Review date: November 25, 2020 | Lire en français

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3. Microstructures produced – Properties

From a microstructural point of view, conventional plastic deformation processes such as rolling, extrusion and extrusion (for the latter, see [M 640] and [M 651] ) do not achieve the exceptional degree of microstructural refinement obtained by severe plastic deformation. Materials deformed by conventional methods exhibit a substructure of dislocations (cells, sub-grains), marked by grain boundaries with low angles of disorientation.

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