对于固化温度随压力升高而降低的熔体，在适当的初始温度和压力下快速卸压，将使熔体快速固化．给出了通过快速卸压而获得相应过冷速率的计算公式，并用ＡｌＧｅ系统对这种新的快速凝固方法进行了评估．实验结果表明用此种方法能获得大于１０５Ｋ·ｓ－１的过冷速率，因而有利于制备大块亚稳材料甚至非晶．同时，通过快速卸压而实现快速凝固的原理，可用于解释物质在冲击压作用下的非晶化及亚稳相形成 For a melt whose cure temperature decreases with increasing pressure, rapid pressure relief at a suitable initial temperature and pressure will rapidly melt the melt. The formula for obtaining the corresponding supercooling rate by rapid pressure relief is given and the new rapid solidification method is evaluated by using the AlGe system. Experimental results show that this method can be obtained over the cooling rate of more than 105K · s-1, which is conducive to the preparation of bulk metastables and even amorphous material. At the same time, the principle of rapid solidification by rapid pressure relief can be used to explain the amorphization and metastable phase formation of materials under impact pressure