Skip to Main content Skip to Navigation
Journal articles

Direct Modeling of Structures and Segregations Up to Industrial Casting Scales

Abstract : Direct modeling of structures and segregations during industrial casting processes is made difficult due to the need for coupling intricate phenomena occurring at multiple length and time scales. Its outputs are, however, required for modeling of further thermomechanical treatments as well as for prediction of in-service properties. The present article presents recent efforts made to integrate microscopic scale concepts taken from physical metallurgy into a macroscopic model. This new model includes macroscopic solution of average conservation equations, mesoscopic scale description of the development of the grain structure, together with microscopic scale consideration for the kinetics of the solid-liquid interfaces and the chemical segregation taking place between phases. Simulations are presented for directional solidification of a cylindrical ingot, a benchmark experiment for macrosegregation in a rectangular cavity, and a surface treatment that mimics the gas tungsten arc welding process. The difficulties of transforming the model into a tool applied for industrial castings are discussed.
Document type :
Journal articles
Complete list of metadata

https://hal-mines-paristech.archives-ouvertes.fr/hal-00850850
Contributor : Magalie Prudon <>
Submitted on : Friday, August 9, 2013 - 11:02:37 AM
Last modification on : Sunday, January 3, 2021 - 4:46:02 PM

Identifiers

Citation

Charles-André Gandin, Tommy Carozzani, Hugues Digonnet, Shijia Chen, Gildas Guillemot. Direct Modeling of Structures and Segregations Up to Industrial Casting Scales. JOM Journal of the Minerals, Metals and Materials Society, Springer Verlag (Germany), 2013, 65 (9), pp.1122-1130. ⟨10.1007/s11837-013-0679-z⟩. ⟨hal-00850850⟩

Share

Metrics

Record views

295