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Research Progress on Rheological Behavior of AA7075 Aluminum Alloy During Hot Deformation

Research Progress on Rheological Behavior of AA7075 Aluminum Alloy During Hot Deformation
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Author(s): Muhammed O.H Amuda (Materials Development and Processing Research Group (MADEPREG), Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Lagos, Lagos, Nigeria), Taiwo F. Lawal (Materials Development and Processing Research Group (MADEPREG), Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Lagos, Lagos, Nigeria) and Esther T. Akinlabi (Department of Mechanical Engineering Science, Faculty of Engineering and the Built Environment, University of Johannesburg, Johannesburg, South Africa)
Copyright: 2017
Volume: 4
Issue: 1
Pages: 44
Source title: International Journal of Materials Forming and Machining Processes (IJMFMP)
Editor(s)-in-Chief: J. Paulo Davim (University of Aveiro, Portugal)
DOI: 10.4018/IJMFMP.2017010104

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Abstract

The current characterization of the rheological behavior during high temperature deformation in AA7075 is presented. The prevailing understanding in the literature is limited to the consideration of process parameters in isolation of microstructural features and the dynamics at the deformation zone in relation to geometry of the die tool and frictional conditions. Multiplicity of phenomena such as dynamic recovery (DRV), discontinuous dynamic recrystallization (DDRX), continuous dynamic recrystallization (CDRX), and geometric dynamic recrystallization (GDRX); are reported to dictates the dynamics in play during high temperature deformation of the alloy. Therefore, a need to appropriately characterize the flow behavior in AA7075 alloy during high temperature thermo mechanical processing that would involve an integrative study of concerned process parameters, metallurgical features and conditions at the deformation zone is imperative in order to achieve wholesome understanding of the flow behavior in AA7075 aluminum alloy during high temperature deformation.

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