Investigation of Correlations between Shear History and Microstructure of Semi-Solid Alloys

Michael Modigell; Annalisa Pola; Michel Suéry; Christoph Zang

doi:10.4028/www.scientific.net/SSP.192-193.251

Paper Titles

R-HPDC of Magnesium Alloys
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Corrosion Behaviour of High Pressure Die-Cast and Semi-Solid Cast AZ91, AM60 and AM50 Alloys
p.231

Microstructural Evolution of AZ91D-1.5%Er during Semi-Solid Isothermal Treatment
p.238

Study on Microstructural Evolution of Deformed Magnesium Alloy during Partial Remelting
p.246

Investigation of Correlations between Shear History and Microstructure of Semi-Solid Alloys
p.251

Microstructure and Mechanical Properties of Squeeze Cast Semi-Solid Materials
p.257

Squeeze Flow of Semi-Solid Slurries
p.263

A Thermomechanical Model Dedicated to Thixoforming. Application to Semi-Solid Forming
p.269

A Boubaker Polynomials Expansion Scheme for Solving the Flow of Nonlinear Power-Law Fluid in Semi-Solid State
p.276

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Investigation of Correlations between Shear History and Microstructure of Semi-Solid Alloys

Abstract:

Rheological properties of semi-solid alloys are closely knit to the solid-phase microstructure. Parameters such as particle size distribution are commonly determined by 2D cross section analysis. The determination of mechanisms such as particle deagglomeration with increasing shear rate however, requires information on the 3D spatial distribution. By means of synchrotron radiation tomography and SEM on AlCu samples, particle size distributions and the not yet microscopically observed interrelation of shear rate and particle agglomeration in thixo-material is investigated.