Skip to Main content Skip to Navigation
Conference papers

First analysis of a numerical benchmark for 2D columnar solidification of binary alloys

Abstract : During the solidification of metal alloys, chemical heterogeneities at the product scale (macrosegregation) develop. Numerical simulation tools are beginning to appear in the industry, however their predictive capabilities are still limited. We present a numerical benchmark exercise treating the performance of models in the prediction of macrosegregation. In a first stage we defined a "minimal" (i.e. maximally simplified) solidification model, describing the coupling of the solidification of a binary alloy and of the transport phenomena (heat, solute transport and fluid flow) that lead to macrosegregation in a fully columnar ingot with a fixed solid phase. This model is solved by four different numerical codes, employing different numerical methods (FVM and FEM) and various solution schemes. We compare the predictions of the evolution of macrosegregation in a small (10×6 cm) ingot of Sn-10wt%Pb alloys. Further, we present the sensitivities concerning the prediction of instabilities leading to banded channel mesosegregations.
Document type :
Conference papers
Complete list of metadata

Cited literature [11 references]  Display  Hide  Download

https://hal-mines-paristech.archives-ouvertes.fr/hal-00675486
Contributor : Magalie Prudon <>
Submitted on : Thursday, March 15, 2012 - 9:48:34 AM
Last modification on : Thursday, June 17, 2021 - 3:49:52 AM
Long-term archiving on: : Monday, June 18, 2012 - 3:50:10 PM

File

Arquis-et-al_SteelSim2011.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00675486, version 1

Citation

Eric Arquis, Michel Bellet, Hervé Combeau, Yves Fautrelle, Dominique Gobin, et al.. First analysis of a numerical benchmark for 2D columnar solidification of binary alloys. 4th International Conference on Modelling and Simulation of Metallurgical Processes in Steelmaking, Jun 2011, Düsseldorf, Germany. 7 p. ⟨hal-00675486⟩

Share

Metrics

Record views

1900

Files downloads

535