Solute distribution in columnar crystalzone of continuous casting billets

来源期刊：中国有色金属学报(英文版)2001年第5期

论文作者：常国威 赵增武 王静松 王万军 王新华

文章页码：708 - 711

Key words：solidification; segregation; continuous casting

Abstract: The periodic bending deformation in the direction of casting occurs at the liquid/solid interface of billet due to the roller supporting force and the pressure of molten metal in the process of continuous casting. Based on this fact, a qualitative expression of solute concentration in columnar crystal zone for continuous casting billet is established, which agrees with the experimental results basically. Therefore, it is favorable to gain a columnar structure with less segregation by adopting a caster with compactly distributed small rollers and enhancing the cooling intensity in secondary-cooling zone.