Phase-field Modeling of Rapid Solidification in Small Alloy Droplets
نویسندگان
چکیده
منابع مشابه
Phase-field formulation for quantitative modeling of alloy solidification.
A phase-field formulation is introduced to simulate quantitatively microstructural pattern formation in alloys. The thin-interface limit of this formulation yields a much less stringent restriction on the choice of interface thickness than previous formulations and permits one to eliminate nonequilibrium effects at the interface. Dendrite growth simulations with vanishing solid diffusivity show...
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Phase-field modelling of rapid alloy solidification, in which the rejection of latent heat from the growing solid cannot be ignored, has lagged significantly behind the modelling of conventional casting practises which can be approximated as isothermal. This is in large part due to the fact that if realistic materials properties are adopted the ratio of the thermal to solute diffusivity (the Le...
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The solidification of metallic alloys gives rise to the spontaneous formation of a large variety of different microstructures. This is a subject of fundamental interest as a well-controlled example of pattern formation, and of practical importance because of its applications in metallurgy [1]. These patterns arise from a subtle interplay between the destabilizing effects linked to the transport...
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ژورنال
عنوان ژورنال: ISIJ International
سال: 2003
ISSN: 0915-1559
DOI: 10.2355/isijinternational.43.1758