Abstract
The main aim of this research is to simulate a compression test of semi-solid A380 aluminium alloy in numerical software. In order to achieve a more realistic model, 2D image-based modelling is used. The first step of this method is to obtain appropriate microstructural images. As the semi-solid material consists of non-dendritic solid phase and liquid channels, ECAP tool is used to apply a high plastic strain to casted samples. In order to observe desirable (non-dendritic) microstructure, microstructure image is taken from water quench ECAPed sample heated at semi-solid range. After the binarizing image data, the data are imported to appropriate software. A coupled Eulerian–Lagrangian (CEL) approach is used to obtain macro-scale mechanical behaviour. This approach is used to take advantages of both main formulations: Eulerian formulation and Lagrangian formulation. In CEL approach, material moves through an Eulerian mesh that is fixed in space while Lagrangian mesh is attached to the material points and is used to set boundary conditions. The simulations results show a strong dependence of mechanical behaviour on strain rate. This informations can be used for prediction of semi-solid forming, as well.
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The authors would like to thank the company AD Plastik from Split, Croatia for providing them with numerical software.
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ID contributed to the study conception and design. Modelling in the software was performed by SJ, DB and ID. ID performed the simulations. The first draft of the manuscript was written by ID. All authors peer reviewed paper writing and editing. All authors reviewed the final manuscript.
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Dumanić, I., Jozić, S. & Bajić, D. Simulation of Real Image Microstructural Model of Semi-solid Aluminium Alloy Using a Coupled Eulerian–Lagrangian Approach. Inter Metalcast 16, 1292–1302 (2022). https://doi.org/10.1007/s40962-021-00689-2
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DOI: https://doi.org/10.1007/s40962-021-00689-2