Multi-scale investigation of microstructure and texture evolution during equal channel angular pressing of silver

Suwas, S and Skrotzki, W and Scheerbaum, N and Grosdidier, T and Fundenberger, J-J and Tóth, LS and Brokmeier, H-G (2024) Multi-scale investigation of microstructure and texture evolution during equal channel angular pressing of silver. In: Journal of Materials Science .

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Abstract

A multi-scale investigation was carried out on pure silver subjected to equal channel angular pressing up to 3 passes. Microstructure and texture were examined using scanning and transmission electron microscopy as well as diffraction of neutron and high-energy synchrotron radiation. The evolution of the deformation substructure in the material is in accordance with its low stacking fault energy followed by restoration mechanisms leading to overall microstructural refinement. The restoration mechanism sets in as early as after 3 passes. Twinning involved in the deformation process supports grain refinement through mechanisms of dynamic recrystallization involving strain-induced boundary migration contributing to a steady-state grain size. The global texture, as measured by neutron diffraction, forms through a twin-assisted deformation mechanism. The texture is found heterogeneous through thickness. Graphical abstract: Figure not available: see fulltext. © 2024, The Author(s).

Item Type:	Journal Article
Publication:	Journal of Materials Science
Publisher:	Springer
Additional Information:	The copyright for this article belongs to author
Keywords:	Dynamic recrystallization; Equal channel angular pressing; Grain refinement; Grain size and shape; High resolution transmission electron microscopy; Neutron diffraction; Restoration; Scanning electron microscopy; Silver; Synchrotron radiation, Deformation substructures; High energy synchrotron; Low stacking fault energies; Microstructural refinement; Microstructure evolutions; Multi-scales; Restoration mechanism; Scanning and transmission electron microscopy; Texture evolutions; Transmission electron diffraction, Textures
Department/Centre:	Others
Date Deposited:	01 Mar 2024 09:11
Last Modified:	01 Mar 2024 09:11
URI:	https://eprints.iisc.ac.in/id/eprint/83971

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