Simulation of microstructures in solidification of aluminum twin-roll casting
(1. Key Laboratory of Advance Material of Rare Precious and Nonferrous Metals of Ministry of Education,
Kunming University of Science and Technology, Kunming 650093, China;
2. Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093, China)
Kunming University of Science and Technology, Kunming 650093, China;
2. Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093, China)
Abstract: Based on the research on the solidification of twin-roll continuous casting aluminum thin strip, the analytical model of heterogeneous nucleation, the growth kinetics of tip (KGT) and columnar dendrite transformation to equiaxed dendrite (CET) of twin-roll continuous casting aluminum thin strip solidification was established by means of the principle of metal solidification and modern computer emulational technology. Meantime, based on the cellular automaton, the emulational model of twin-roll continuous casting aluminum thin strip solidification was established. The foundation for the emulational simulation of twin-roll casting thin strip solidification structure was laid. Meanwhile, the mathematical simulation feasibility was confirmed by using the solidification process of twin-roll continuous casting aluminum thin strip.
Key words: twin-roll continuous casting; solidification structure; emulational simulation; micro-model