Numerical Simulation of Semi-Solid AZ91D Magnesium Alloy in Thixoforming Process

Ze Sheng Ji; Hong Hua Yan; Mao Liang Hu; Xiao Ping Zheng

doi:10.4028/www.scientific.net/SSP.141-143.505

Paper Titles

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Production of Semi-Solid Slurry through Heterogeneous Nucleation in Metal Matrix Nanocomposites (MMNC) Using Nano-Scale Ultrasonically Dispersed Inoculants
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Morphological Features of Silicon Rich Phase in Powder Thixoformed Spray Atomized Hyper-Eutectic Al-Si Alloy
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Effect of Reheating to the Semisolid State on the Microstructure of the A356 Aluminum Alloy Produced by Ultrasonic Melt-Treatment
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Numerical Simulation of Semi-Solid AZ91D Magnesium Alloy in Thixoforming Process
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The Semi-Solid Forming of an Improved AA6061 Wrought Aluminum Alloy Composition
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Thixoforming of Aluminium-Silicon Alloys in a Mechanical Eccentric Press
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Alloy Characterization to Adapt Steels to Thixoforming: Study of a High Chromium High Carbon Steel
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Processing of Al-45Sn-10Cu Based Immiscible Alloy by a Rheomixing Process
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Numerical Simulation of Semi-Solid AZ91D Magnesium Alloy in Thixoforming Process

Abstract:

In the process of metal plastic forming severe plastic deformations occur to the workpiece. As a result the constitutive relations between material and geometry are nonlinear. One of the most common tools to solve such problems is the finite element method. In thixoforming processes of semi-solid metal many factors affect thixoforming fluidity. Therefore it is important to simplify the problem and predict the metal flow properties. For that reason the thixoforming process of semi-solid AZ91D magnesium alloy was modeled with the theory of rigid viscoplastic finite element method using the commercial finite element software DEFORM-3DTM. The fluid and effective stress-strain fields in the thixoforming process were obtained and the relationships among stress, strain rate and temperature were analyzed.