Evolution of specific interface area in dendritic alloy solidification

Autor:	Christoph Beckermann, H Neumann-Heyme, Kerstin Eckert
Rok vydání:	2015
Předmět:	Dendrite (crystal) Materials science Volume (thermodynamics) Characteristic length Scale (ratio) Alloy Metallurgy engineering Thermodynamics Inverse engineering.material Microstructure Measure (mathematics)
Zdroj:	IOP Conference Series: Materials Science and Engineering. 84:012072
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/84/1/012072
Popis:	The specific area of the solid-liquid interface is an important integral measure for the morphological evolution during solidification. It represents not only the inverse of a characteristic length scale of the microstructure, but it is also a key ingredient in volume- averaged models of alloy solidification. Analytical descriptions exist for either pure coarsening or pure growth processes. However, all alloy solidification processes involve concurrent growth and coarsening. In the present study, the kinetics of the solid-liquid interface of a columnar dendrite are studied using a 3D phase-field model. The simulation results are combined with data from recent experiments to study the influence of the cooling rate on the evolution of the interfacial area.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d8751015c927486eb3dfc345c66cab0b https://doi.org/10.1088/1757-899x/84/1/012072 Zobrazit plný text záznamu