Abstract
AbstractPeri‐eutectic transition was investigated in terms of the dependence of crystallization behavior on undercooling in Cu–Ag–Ge ternary alloy composed of (Ag), ζ(Cu5Ge), and ε2(Cu3Ge) phases. (Ag + ε2) pseudobinary eutectic is the product of both peri‐eutectic and subsequent pseudobinary eutectic transitions. Nanoscale structure of anomalous (Ag + ε2) pseudobinary eutectic forms at the maximum undercooling, which is ascribed to the independent nucleation and growth from the liquid. The decrease of (Ag + ε2) pseudobinary eutectic at a high undercooling is due to that the phase transition happening at the beginning solidification stage proceeds more thoroughly at a higher undercooling.
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