先进材料疑固实验室 Liquidus line slope,m Laboratory of Advanced Materials Solidification Generally,in order to simplify the mathematical treatment of solidification processes,it is assumed that liquidus and solidus lines of the phase diagram are straight. >Therefore,that the distribution T coefficient,k,and the liquidus slope, m=dT/dc △TO m,are constant. ACo liquidus solidus >m is defined so that the product, m(k-1),is positive. Co Co/k 上游文通大学 SHANGHAI JIAO TONG UNIVERSITYLiquidus line slope, m Generally, in order to simplify the mathematical treatment of solidification processes, it is assumed that liquidus and solidus lines of the phase diagram are straight. Therefore, that the distribution coefficient, k, and the liquidus slope, m, are constant. m is defined so that the product, m(k-1), is positive