TY - JOUR
T1 - Investigation of the initial transient in directional solidification of binary AlCu alloys
AU - Drevermann, Anne
AU - Sturz, Laszlo
AU - Warnken, Nils
AU - Zimmermann, Gerhard
PY - 2005/12/15
Y1 - 2005/12/15
N2 - For the understanding of the formation of microstructures the initial transient, i.e. the very beginning of solidification, is of major relevance. At this stage a complex interaction between the velocity of the solidification front, the concentration pile-up and the temperature gradient takes place. In a Bridgman-Stockbarger furnace directional solidification experiments with binary AlCu 1.3 wt.% were performed allowing solidification with a planar solid-liquid interface. The velocity and temperature profile were measured during the experiments, concentration profiles afterwards. In this paper we present experimental results. Parallel to the experimental work numerical simulations based on the model of Coriell et al. were performed and first results are compared to the experiments.
AB - For the understanding of the formation of microstructures the initial transient, i.e. the very beginning of solidification, is of major relevance. At this stage a complex interaction between the velocity of the solidification front, the concentration pile-up and the temperature gradient takes place. In a Bridgman-Stockbarger furnace directional solidification experiments with binary AlCu 1.3 wt.% were performed allowing solidification with a planar solid-liquid interface. The velocity and temperature profile were measured during the experiments, concentration profiles afterwards. In this paper we present experimental results. Parallel to the experimental work numerical simulations based on the model of Coriell et al. were performed and first results are compared to the experiments.
U2 - 10.1016/j.msea.2005.08.164
DO - 10.1016/j.msea.2005.08.164
M3 - Article
SN - 0921-5093
SP - 259
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
ER -