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Microstructural evolution in commercial purity aluminum during high-pressure torsion

Zhilyaev, A.P., Oh-ishi, K., Langdon, T.G. and McNelley, T.R. (2005) Microstructural evolution in commercial purity aluminum during high-pressure torsion Materials Science and Engineering: A, 410-411, pp. 277-280. (doi:10.1016/j.msea.2005.08.044).

Record type: Article


An investigation was conducted to evaluate the microstructural evolution occurring in disks of commercial purity aluminum processed by high-pressure torsion (HPT) under constrained conditions. Microhardness measurements were taken to assess the variation in hardness across the diameters of disks subjected to different imposed strains and the microstructures were observed at the edges and in the centers of the disks using transmission electron microscopy. The results show the microhardness is lower and there is less grain refinement in the central regions of the disks in the initial stages of torsional straining but the microstructures become reasonably homogeneous across the disks at high imposed strains.

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Published date: 2005
Additional Information: The Langdon Symposium: Flow and forming of Crystalline Materials
Keywords: aluminum, high-pressure torsion (hpt), microstructure, ultrafine grains
Organisations: Engineering Sciences


Local EPrints ID: 23847
ISSN: 0921-5093
PURE UUID: 4222d713-c0ab-4b2e-81e9-21baa93bf0e6
ORCID for T.G. Langdon: ORCID iD

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Date deposited: 22 Mar 2006
Last modified: 17 Jul 2017 16:16

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Author: A.P. Zhilyaev
Author: K. Oh-ishi
Author: T.G. Langdon ORCID iD
Author: T.R. McNelley

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