| Autor: |
Sanjuan-Sanjuan, Gerardo, Galindo-Solano, Arturo, Ramirez-Calera, Itzel Jazmín, Chavez-Castellanos, Ángel Enrique |
| Zdroj: |
Diffusion and Defect Data Part B: Solid State Phenomena; August 2023, Vol. 347 Issue: 1 p177-182, 6p |
| Abstrakt: |
Semisolid materials with a non-dendritic microstructure have a complex rheological behavior such as pseudo-plasticity and thixotropy. These properties affect filling and solidification processes during, casting; thus, simulation plays a vital role since it avoids limitations improving cast and production performance. In order to study and A356 aluminum semisolid alloy flow, a Computational Fluid Dynamics (CFD) software (ANSYS) is used to simulate the die filling process in a rectangular mold. Three non-Newtonian constitutive equations are modeled in this work: the Cross equation, the Power-law equation and the Carreau equation. The rheological parameters for each equation were obtained from experimental data reported in the literature. The results showed that the non-Newtonian models predicted better the filling behavior and the pressure distribution than the Newtonian model. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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