Comptes Rendus
A quasi two-dimensional benchmark experiment for the solidification of a tin–lead binary alloy
[Expérience benchmark quasi-2D pour la solidification d'un alliage binaire étain–plomb]
Comptes Rendus. Mécanique, Volume 335 (2007) no. 5-6, pp. 336-341.

La présente étude consiste à analyser expérimentalement la solidification de l'étain pur et de l'alliage binaire d'étain Sn-10wt.%Pb. L'expérience consiste à solidifier un lingot parallélépipédique de faible épaisseur à l'aide de deux échangeurs latéraux qui permettent d'appliquer une différence de température entre les deux parois latérales et verticales. Un réseau de cinquante thermocouples placés sur la grande face latérale permet d'accéder à la distribution instantanée de la température. L'analyse post-mortem du lingot fournit la structure de solidification. Nous présentons les cas avec le gradient de température nul et des taux de refroidissement de 0,02 et 0,04 K/s respectivement. L'évolution temporelle du flux de chaleur et du champ de la température est mesurée et analysée. Ceci nous permet d'évaluer l'évolution de transfert thermique due à la convection normale, ainsi que son influence sur la macrostructure de solidification.

A horizontal solidification benchmark experiment with pure tin and a binary alloy of Sn-10 wt.%Pb is proposed. The experiment consists in solidifying a rectangular sample using two lateral heat exchangers which allow the application a controlled horizontal temperature difference. An array of fifty thermocouples placed on the lateral wall permits the determination of the instantaneous temperature distribution. The cases with the temperature gradient G=0, and the cooling rates equal to 0.02 and 0.04 K/s are studied. The time evolution of the interfacial total heat flux and the temperature field are recorded and analyzed. This allows us to evaluate heat transfer evolution due to natural convection, as well as its influence on the solidification macrostructure.

Publié le :
DOI : 10.1016/j.crme.2007.05.009
Keywords: Heat transfer, Solidification, Benchmark, Natural convection, Temperature field
Mot clés : Transferts thermiques, Solidification, Benchmark, Convection naturelle, Champ température
Xiao Dong Wang 1 ; Patrick Petitpas 1 ; Christian Garnier 1 ; Jean-Pierre Paulin 1 ; Yves Fautrelle 1

1 EPM/SIMAP/CNRS/INPG/ENSEEG Laboratory, B73, 38402 Saint Martin d'Hères cedex, France
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     title = {A quasi two-dimensional benchmark experiment for the solidification of a tin{\textendash}lead binary alloy},
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Xiao Dong Wang; Patrick Petitpas; Christian Garnier; Jean-Pierre Paulin; Yves Fautrelle. A quasi two-dimensional benchmark experiment for the solidification of a tin–lead binary alloy. Comptes Rendus. Mécanique, Volume 335 (2007) no. 5-6, pp. 336-341. doi : 10.1016/j.crme.2007.05.009. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2007.05.009/

[1] Y. Fautrelle, Solidification of metallic alloys under the influence of various types of AC magnetic field, Keynote lecture, in: ASIAN EPM 2005, 2nd Asian Workshop on Electromagnetic Processing of Materials, Shenyang, RP China, May 2005, pp. 22–25

[2] X.D. Wang, A. Ciobanas, F. Baltaretu, A.M. Bianchi, Y. Fautrelle, Control of the macrosegregation during solidification of a binary alloy by means of AC magnetic field, in: 4th Int. Conf. on Solidification and Gravity, Miskolc, 6–10 September 2004, ed. by Transtech

[3] D.J. Hebditch; J.D. Hunt Observations of ingot macrosegregation on model systems, Metallurgical Trans., Volume 5 ( July 1974 ), pp. 1557-1563

[4] C.A. Siqueira; N. Cheung; A. Garcia The columnar to equiaxed transition during solidification of Sn–Pb alloys, J. Alloys Compounds, Volume 351 (2003), pp. 126-134

[5] L.H. Shaw; J. Beech; R.H. Hickley Channel segregates in cast steel rolls, Ironmaking Steelmaking, Volume 13 (1986), pp. 154-160

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