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EBSD characterization of repetitive grain refinement in AZ31 magnesium alloy
Fatemi Varzaneh, S. M; Zarei Hanzaki, A; Cabrera Marrero, José M.; Rodríguez Calvillo, Pablo
Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics
A polycrystalline Mg-3Al-1Zn was subjected to high plastic strains by applying accumulative back extrusion (ABE) process. Electron back scatter diffraction analyses were used to explore the grain refinement mechanisms. A novel grain refinement trend was found at large strains, where new recrystallized grains were repetitively refined through dynamic recrystallization. The grain size was diminishing continuously up to the fourth ABE pass, after which no further grain refinement was noticed upon successive passes. (C) 2014 Elsevier B.V. All rights reserved.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria dels materials
Magnesium alloys
Recrystallization
Microstructure
Deformation
Electron diffraction
Continuous Dynamic Recrystallitation
Severe Plastic-Deformation
MG Alloy
Microstructural Evolution
Mechanical-Properties
Model
Aluminium
Size
ZK60
Magnesi -- Aliatges
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
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