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Article Dans Une Revue Journal of Materials Research Année : 2016

Effect of a transverse magnetic field on solidification structure in directionally solidified Al–40 wt% Cu alloys

Hanxiao Li
  • Fonction : Auteur
Yves Fautrelle
  • Fonction : Auteur
Rene Moreau
  • Fonction : Auteur
Xi Li
  • Fonction : Auteur

Résumé

Effect of a transverse magnetic field on macrosegregation and growth of primary Al2Cu dendrites in directionally solidified Al-40 wt% Cu alloys was investigated experimentally. The experimental results indicated that the magnetic field caused the formation of channel-like and freckle segregations. It was also found that the application of the magnetic field benefited the growth of primary Al2Cu dendrites and the axial segregation. Moreover, the magnetic field decreased the primary dendrite spacing and the mushy zone length; however these effects weakened with the increase of the magnetic field intensity. The above experimental results should be attributed to the formation of the thermoelectric magnetic convection during directional solidification under the transverse magnetic field.

Domaines

Matériaux
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Dates et versions

hal-01371063 , version 1 (23-09-2016)

Identifiants

Citer

Hanxiao Li, Dafan Du, Yves Fautrelle, Rene Moreau, Xi Li, et al.. Effect of a transverse magnetic field on solidification structure in directionally solidified Al–40 wt% Cu alloys. Journal of Materials Research, 2016, 31 (02), pp.213-221. ⟨10.1557/jmr.2015.396⟩. ⟨hal-01371063⟩
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