Nonequilibrium near-liquidus casting ( NNLC) is such a process that the casting should be carried out near the nonequilibrium liquidus temperature which was determinated by the cooling curve of melt in a nonequilibrium solidification process. It is substantially a near-liquidus casting. 近非平衡液相线铸造方法是测量熔体非平衡凝固过程的冷却曲线,确定其非平衡液相线温度,并在此温度附近进行铸造的工艺方法,为实质意义上的近液相线铸造。