Grain size evolution during discontinuous dynamic recrystallization
Grain size evolution during discontinuous dynamic recrystallization
Grain size behaviour during discontinuous dynamic recrystallization in alloys is characterized by a theoretical approach that combines a novel thermostatistics framework, with classical grain nucleation and growth formulations. Configurational effects from dislocation migration paths control microstructure variation via an entropic effect. An alternative approach for accounting for solute-drag effects is proposed. It is shown that the drag atmosphere linearly amounts to the atomic radius of solute atoms. The approach is validated for various deformation conditions in 20 single-phase metals.
Dislocation theory, Dynamic recrystallization, Grain boundary migration, Modelling, Statistical mechanics
Galindo-Nava, E.I.
55a2bf00-0903-414e-8ab6-e26d143a9af3
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
February 2014
Galindo-Nava, E.I.
55a2bf00-0903-414e-8ab6-e26d143a9af3
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Galindo-Nava, E.I. and Rivera-Díaz-Del-Castillo, P.E.J.
(2014)
Grain size evolution during discontinuous dynamic recrystallization.
Scripta Materialia, 72-73.
(doi:10.1016/j.scriptamat.2013.09.020).
Abstract
Grain size behaviour during discontinuous dynamic recrystallization in alloys is characterized by a theoretical approach that combines a novel thermostatistics framework, with classical grain nucleation and growth formulations. Configurational effects from dislocation migration paths control microstructure variation via an entropic effect. An alternative approach for accounting for solute-drag effects is proposed. It is shown that the drag atmosphere linearly amounts to the atomic radius of solute atoms. The approach is validated for various deformation conditions in 20 single-phase metals.
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More information
Accepted/In Press date: 20 September 2013
e-pub ahead of print date: 27 September 2013
Published date: February 2014
Keywords:
Dislocation theory, Dynamic recrystallization, Grain boundary migration, Modelling, Statistical mechanics
Identifiers
Local EPrints ID: 492479
URI: http://eprints.soton.ac.uk/id/eprint/492479
ISSN: 1359-6462
PURE UUID: af54d221-4a92-462b-bbba-df7da00417b1
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Date deposited: 29 Jul 2024 17:00
Last modified: 30 Jul 2024 02:06
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Author:
E.I. Galindo-Nava
Author:
P.E.J. Rivera-Díaz-Del-Castillo
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