Validation of a Front-Tracking Model of the Columnar to Equiaxed Transition using Solidification Results from the Maxus 7 Microgravity Platform - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue JASMA Année : 2008

Validation of a Front-Tracking Model of the Columnar to Equiaxed Transition using Solidification Results from the Maxus 7 Microgravity Platform

Résumé

To study the columnar-to-equiaxed transition (CET) in alloy castings, three aluminum-silicon samples were solidified onboard the MAXUS 7 sounding rocket. Temperature measurements were made during the flight and the samples were retrieved and analyzed for their solidified macrostructure. Two of the samples produced a CET while the third sample produced a mixed structure with grains nucleating on the crucible walls. A novel front tracking model of solidification and a model of the MACE test apparatus are presented. Validation of the solidification code is carried out. Cooling curves from the experiments are predicted. A simulation of the solidified macrostructure is also given for each experiment. The CET positions are predicted in agreement with the experimental results.

Domaines

Matériaux
Fichier non déposé

Dates et versions

hal-01728117 , version 1 (09-03-2018)

Identifiants

  • HAL Id : hal-01728117 , version 1

Citer

Shaun Mcfadden, L. Sturz, Hyejin Jung, Nathalie Mangelinck-Noel, H. Nguyen Thi, et al.. Validation of a Front-Tracking Model of the Columnar to Equiaxed Transition using Solidification Results from the Maxus 7 Microgravity Platform. JASMA, 2008, 25 (3), pp.489-494. ⟨hal-01728117⟩
57 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More