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Showing 1 to 12 of 12 for “"Alloy solidification"”.
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Modelling of the binary alloy solidification process
… consistent model capable of modelling a binary alloy undergoing solidification or melting is developed. The theory is continuum based, and the solid-liquid phase change system is described macroscopically by a single set of conservation equations. The model is an extension of that presented in …
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An investigation of dendrite-free aluminum alloy solidification
Thesis: B.S., Massachusetts Institute of Technology, Department of Metallurgy, 1961
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Atomistic Insights into Alloy Solidification using Machine-Learning Potentials
Alloy solidification is a critical process in materials design and manufacturing, as it governs the formation of microstructures that determines the mechanical, thermal, and chemical properties of materials. However, direct in situ observation remains extremely challenging due the need for high …
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Modeling fluid interactions with the rigid mush in alloy solidification
… is critical to understand its development during solidification processing. Due to the complex nature of the governing physical phenomena, many researchers have turned to numerical simulations for these predictions, but properly modeling alloy solidification presents a variety of challenges. Among …
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A rotating disk study of impurity segregation in aluminum alloy solidification
The presence of impurities during the solidification of aluminum alloys can be detrimental to alloy properties and performance. As aluminum manufacturers aim to increase the amount of recycled scrap in direct-chill cast aluminum ingots, they face rising levels of impurities that threaten the …
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Development of an advanced aluminum thermal analysis system for the characterization of the 319 aluminum alloy solidification process.
… is the study of heat evolution as a molten alloy transforms to a solid. Studying the evolution of heat results in a temperature, time relationship in the form of a cooling curve. Specific characteristics of the 319-aluminum cooling curve are described and related to specific metallurgical …
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An Adaptive Mesh Refinement Scheme for Solidification Problems
… a solid/liquid front in a two-dimensional solidification problem. These methods include mesh refinement and unrefinement algorithms for the finite element method applied to transient problems. An a posteriori error estimator is described to locate regions in the finite element mesh needing …
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Parallel Lattice Boltzmann Method for Convection in Dendritic Solidification
… fluid flow in multi-physics problems, such as alloy solidification, focusing on the effects on microstructure evolution. The literature has shown the importance of fluid flow in solidification as it affects the morphology and evolution of the growing dendrites. Because solute flow represents …
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Numerical simulation of dendritic growth of binary alloys
… finite element model for simulation of dendritic solidification of binary alloys is developed. The model solves the coupled time-dependent temperature and solute concentration equations on two independent meshes: a fixed mesh for the temperature and an adaptive interface-conforming mesh for the …
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Modeling transport phenomena and uncertainty quantification in solidification processes
… primary processing route for wrought aluminum alloys. This semicontinuous process consists of primary cooling as the metal is pulled through a water cooled mold followed by secondary cooling with a water jet spray and free falling water. To gain insight into this complex solidification process, …
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High Order Immersed Finite Difference Methods for Complex Domains with Moving Boundaries and Interfaces
… systems such as fluid-structure interaction, alloy solidification, and multiphase flows. Simulating moving interfaces with traditional techniques requires a moving mesh that continuously adapts to the interface, which is costly and places restrictions on the interface motion. Immersed methods …