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采用真空回转振动式高温熔体黏度仪测量了Gd基大块非晶形成合金过热液体的黏度,并计算得到过热液体脆性参数.结合文献中提供的Pr基大块非晶形成合金的过热液体脆性参数值分析发现,在相同体系的合金中过热液体脆性参数与混合焓的绝对值成线性关系,过热液体脆性参数越大其混合焓绝对值越小.在能量图谱上表现为过热液体脆性参数值越大相邻能量极小值点的平均势垒高度也越大.
The viscosity of overheated Gd-based bulk amorphous alloy was measured by vacuum rotary vibratory high temperature melt viscometer and the brittleness parameters of overheated liquid were calculated. Combined with the brittleness of overheated liquid of Pr-based bulk amorphous alloy The analysis of parameter values shows that the brittleness parameter of superheated liquid in the same system has a linear relationship with the absolute value of the enthalpy of mixing, and the larger the absolute value of the enthalpy of mixing is, the larger the brittleness parameter of superheated liquid is, and the brittleness parameter The larger the average barrier height of the smaller adjacent energy points, the greater the barrier height.