使用水淬法制备含微量Fe元素的CuZrAl块体金属玻璃.使用X射线衍射(XRD)检测其结构；采用DSC研究Fe元素的添加对块体金属玻璃热稳定性的影响,微量添加Fe元素显著拓宽了过冷液相区.Cu44Zr48Al7Fe块体金属玻璃的塑性应变约为1.5％.使用透射电子显微镜(TEM)观察其微观结构,结果发现,添加1％～2％Fe(摩尔分数)的CuZrA1合金中出现了相分离的富CuZr非晶相.
The CuZrAl bulk metallic glass with minor-addition of Fe was prepared by rapid quenching method.The structures were examined by X-ray diffraction (XRD).The effect of Fe on the glass-forming ability was studied by differential scanning calorimetry (DSC).The minor-addition of Fe obviously extends the supercooled liquid region △Tx.The plastic strain of the Cu44Zr48Al7Fe bulk metallic glass is about 1.5％.The microstructures were examined by transmission electron microscopy (TEM).It is found that when 1％-2％ Fe (mole fraction) were introduced into the CuZrAl alloy matrix nanoscale phase separation occurs in the as-prepared Cu44Zr48Al7Fe bulk metallic glass.
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