相图的用处2 S.J.T.U. Phase Transformation and Applications Page 5/34 M 液相 区域熔炼提纯 析出固溶体杂质的含 固溶体 量比平衡液相的少 WB 熔 熔 图5-15区域熔炼示意图 SJTU Thermodynamics of Materials Spring2008©X.J.Jin Lecture 18 Phase Diagram IVPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 18 Phase Diagram IV Page 5/34 相图的用处 2 区域熔炼提纯 析出固溶体杂质的含 量比平衡液相的少