利用CALPHAD(calculation of phase diagrams)技术和已有热力学数据,通过对比分析亚稳过冷液态合金中各结晶相的形核驱动力大小,寻找结晶能力弱而非晶形成能力强的成分范围.选择典型的非晶形成体系,以平衡相图中共晶深度明显不同的3个二元合金体系Cu-Zr,Ni-Nb和Pd-Si为研究对象,预测各体系非晶形成能力与成分的关系,获得非晶形成最优成分,并与共晶点成分及实验数据进行对比.预测结果与实验确定的块体非晶最优成分相符.
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