Abstract
To accelerate the introduction of new cast alloys the modeling and simulation of multiphysical phenomena needs to be considered in the design and optimization of mechanical properties of cast components. The required models related to casting defects, such as microporosity and hot tears are reviewed. Three aluminum alloys are considered A356, 356 and 319. The data on calculated solidification shrinkage is presented and its effects on microporosity levels discussed. Examples are given for predicting microporosity defects and microstructure distribution for a plate casting. Models to predict fatigue life and yield stress are briefly highlighted here for the sake of completion and to illustrate how the length scales of the microstructure features as well as porosity defects are taken into account for modeling the mechanical properties. The data on casting defects including microstructure features, is crucial for evaluating the final performance-related properties of the component.
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Sabau, A.S. (2015). Modeling of Casting Defects in an Integrated Computational Materials Engineering Approach. In: Nastac, L., et al. Advances in the Science and Engineering of Casting Solidification. Springer, Cham. https://doi.org/10.1007/978-3-319-48117-3_28
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DOI: https://doi.org/10.1007/978-3-319-48117-3_28
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