TY - JOUR N2 - The mold temperature of the downward continuous unidirectional solidification (CUS) cannot be controlled higher than the liquidus of alloys to be cast. Therefore, the continuous casting speed becomes the main parameter for controlling the growth of columnar crystal structure of the alloy. In this paper, the tin bronze alloy was prepared by the downward CUS process. The microstructure evolution of the CUS tin bronze alloy at different continuous casting speeds was analysed. In order to further explain the columnar crystal evolution, a relation between the growth rate of columnar crystal and the continuous casting speed during the CUS process was built. The results show that the CUS tin bronze alloy mainly consists of columnar crystals and equiaxed crystals when the casting speed is low. As the continuous casting speed increases, the equiaxed crystals begin to disappear. The diameter of the columnar crystal increases with the continuous casting speed increasing and the number of columnar crystal decreases. The growth rate of columnar crystal increases with increasing of the continuous casting speed during CUS tin bronze alloy process. L1 - http://journals.pan.pl/Content/114708/PDF/AFE%202_2020_20.pdf L2 - http://journals.pan.pl/Content/114708 PY - 2020 IS - No 2 EP - 122 DO - 10.24425/afe.2020.131313 KW - Continuous unidirectional solidification KW - Tin bronze KW - Microstructure evolution KW - Continuous casting speed A1 - Luo, Jihui PB - The Katowice Branch of the Polish Academy of Sciences VL - vol. 20 DA - 2020.04.30 T1 - Preparation and Microstructure Evolution of Continuous Unidirectional Solidification Tin Bronze Alloy at Different Continuous Casting Speed SP - 118 UR - http://journals.pan.pl/dlibra/publication/edition/114708 T2 - Archives of Foundry Engineering ER -