先进材料疑固实验室 Review Laboratory of Advanced Materials Solidification (1+2 maximum syntectic 2 peritectic 2+3 peritectic minimum monotectic E eutectic 7 a eutectoid peritectoid spinodal 6 1+a2 A Mole fraction B Fig.3.15 A hypothetical diagram displaying an array of possible invariant reac- tions in a binary alloy system.(After Rhines [5]). 上游充通大学 SHANGHAI JIAO TONG UNIVERSITYReview