Solidification, Development of Solidification Microstructure Formation Theories.
نویسندگان
چکیده
منابع مشابه
Solidification microstructure development
In the present article, evolution of microstructure during solidification, as a function of various parameters, is discussed. Macrosegregation is described as being due to insufficient diffusivity of solute in the solid. Pattern formation is discussed in the light of instabilities at the solidification growth front. An overview of the scaling relations for various microstructures is given. Meta...
متن کاملComputational Studies of Anisotropic Diffuse Interface Model of Microstructure Formation in Solidification
Abstract. The growth of microstructure non-convex patterns is studied by means of the modified anisotropic phase-field model. The numerical algorithm is designed using the finite-difference spatial discretisation in the method of lines. Results of numerical analysis of the model are based on the a-priori estimates, the compactness and monotonicity arguments. As a quantitative result, we present...
متن کاملDynamical microstructure formation in 3D directional solidification of transparent model alloys: in situ characterization in DECLIC Directional Solidification Insert under diffusion transport in microgravity
To clarify and characterize the fundamental physical mechanisms active in the dynamical formation of three-dimensional (3D) arrays of cells and dendrites under diffusive growth conditions, in situ monitoring of series of experiments on transparent model alloy succinonitrile – 0.24 wt% camphor was carried out under low gravity in the DECLIC Directional Solidification Insert on-board the Internat...
متن کاملTransport processes in directional solidification and their effects on microstructure development
27
متن کاملAggregation and chimney formation during the solidification of ammonium chloride.
Experiments study large-scale pattern formation during the growth of ammonium chloride (NH4Cl) from solution in a thin (Hele-Shaw) geometry. In particular a solid-liquid mixture ("mushy layer") forms in which growing solid NH4Cl crystals form a solid network interspersed with liquid. There are different ways that the mushy layer can be formed, however. If the cell is heated from below and coole...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materia Japan
سال: 1997
ISSN: 1340-2625,1884-5843
DOI: 10.2320/materia.36.916