Rheological Modeling of 7075 Aluminum Alloy Semi-Solid Slurry and its Application in the Simulation of SEED Rheocasting Process
National Natural Science Foundation of China;Science, Technology and Innovation Commission of Shenzhen Municipality[KQTD20170328154443162];
Rheocasting technology has been successfully applied to produce aluminum alloy parts of automobile and communication equipment. However, its application scope is still limited. One reason is that the strength of the applied alloys is limited. In recent years, lots of researchers have tried to use 7075 aluminum alloy in the rheocasting process because this alloy has excellent mechanical properties. In this work, the rheological behavior of 7075 aluminum alloy semi-solid slurry is studied through shear stress-controlled test and shear rate-controlled test by using rotational rheometer. Then the constitutive parameters in Power-Law (PL) model or Carreau-Yasuda (CY) model of non-Newtonian fluid are determined. The models are used to simulate the flow behavior of 7075 aluminum alloy semi-solid slurry in Swirled Enthalpy Equilibration Device (SEED) rheocasting process. The simulation results indicate that the CY model derived from the shear rate sweep test is more suitable for simulating the flow behavior of 7075 aluminum alloy semi-solid slurry during rheocasting than the other models.
First ; Corresponding
|Corresponding Author||Lu，Hongxing; Zhu，Qiang|
Cited Times [WOS]:0
|Department||Department of Mechanical and Energy Engineering|
Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
|First Author Affilication||Department of Mechanical and Energy Engineering|
|Corresponding Author Affilication||Department of Mechanical and Energy Engineering|
Lu，Hongxing,Meng，Xiaoxia,Bunnareaksathya，Nov,et al. Rheological Modeling of 7075 Aluminum Alloy Semi-Solid Slurry and its Application in the Simulation of SEED Rheocasting Process. 2023-01-01.
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