Deformation Behavior of Aluminum Alloy during Semi-Solid Compression

Zhi Ming Du; Xiao Hua Zhang; Qiong Wang; Shou Jing Luo

doi:10.4028/www.scientific.net/SSP.141-143.647

Paper Titles

Numerical Simulation of Thixoforging of an AZ91D Magnesium Alloy Magazine Plate and Experimental Validation
p.623

A One Phase Thermomechanical Model for Semi-Solid Thixoforming
p.629

Investigation of the Primary Phase Segregation during the Filling of an Industrial Mold with Semi-Solid A357 Aluminum
p.635

Use of Calphad Thermodynamics to Simulate Phase Formation during Semi-Solid Processing
p.641

Deformation Behavior of Aluminum Alloy during Semi-Solid Compression
p.647

On a Class of Thermo-Visco-Plastic Constitutive Equations for Semi-Solid Alloys
p.653

Study on Thixo-Extrusion of Semi-Solid Aluminium
p.659

Study on Apparent Viscosity of Semi-Solid Alloys during Rheocasting
p.665

Simulation of Temperature Field during Semi-Solid Magnesium Alloy Produced by Casting-Rolling Technology
p.671

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Deformation Behavior of Aluminum Alloy during Semi-Solid Compression

Abstract:

By semi-solid aluminum alloy compression test, deformation mechanism of semi-solid aluminum alloy was investigated, the thixotropic strength existing in semi-solid aluminum alloy was verified and the influences of temperature and strain rate on the deformation mechanism and thixotropic strength were discussed. The results show that there are 4 stages in the process of compression deformation for semi-solid aluminum alloy: stress swift growth stage, stress drop stage, steady stress stage and stress gradual growth stage. The semi-solid billet has a thixotropic strength, which is sensitive to temperature and strain rate. The higher the temperature or the higher the strain rate is, the smaller the thixotropic strength of the semi-solid alloy.