先进材料疑固实验室 Solute distribution coefficient Laboratory of Advanced Materials Solidification In many cases the liquidus and solidus lines go downward,and k<1.In most calculation case,we focus on k<1. In some cases,the liquidus and solidus lines go upward,and k>1. vanced Materials Solid 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITYSolute distribution coefficient • In many cases the liquidus and solidus lines go downward, and k<1. In most calculation case, we focus on k<1. • In some cases, the liquidus and solidus lines go upward, and k>1