Features on Grain-Structure Evolution during Asymmetric Rolling of Aluminium Alloys

Stefano Farè; Maurizio Vedani; Giuliano Angella

doi:10.4028/www.scientific.net/MSF.604-605.77

Paper Titles

Backstress, the Bauschinger Effect and Cyclic Deformation
p.39

Constitutive Equations for Mg Alloy Hot Work Modeling
p.53

Microstructure and Mechanical Characterization of an Al-Zn-Mg Alloy after Various Heat Treatments and Room Temperature Deformation
p.67

Features on Grain-Structure Evolution during Asymmetric Rolling of Aluminium Alloys
p.77

New Model for Characterization of Dynamic Recrystallization and Prediction of Grain Size Applied to Two Wrought Magnesium Alloys
p.87

Developing Superplasticity in Metallic Alloys through the Application of Severe Plastic Deformation
p.97

Effect of Al₃(Sc,Zr) Particles on Tensile Properties of an Al-Zn-Mg-Cu-Sc-Zr Alloy
p.113

Seam Welds in Hollow Profile Extrusion: Process Mechanics and Product Properties
p.121

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Features on Grain-Structure Evolution during Asymmetric Rolling of Aluminium Alloys

Abstract:

The possibility of refining the grain structure of commercial Al-Mg-Si and Al-Mg-Mn alloys was evaluated using the asymmetric rolling technique in the severe plastic deformation regime. The study demonstrated that asymmetric rolling can readily promote the achievement of an ultrafine grained structure in the alloys investigated. Comparative analyses showed that by increasing the asymmetry ratio and by alternating the shear direction during rolling, higher hardness values and reduced crystallite size could be obtained in the alloys.