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采用直接水淬法成功制备直径5mm球状Zr65Al7.5Cu17.5Ni10大块非晶态合金。X射线衍射、透射电镜检验证明样品完全为非晶态。采用X射线衍射、差示扫描热分析仪(DSC)分析了Zr65Al7.5Cu17.5Ni10非晶态合金的晶化过程,利用Kissinger方程求得Zr65Al7.5Cu17.5Ni10非晶合金的晶化表观激活能。X射线衍射实验结果表明,Zr65Al7.5Cu17.5Ni10非晶态合金的晶化是按下面的次序进行的,非晶态合金→体心立方晶相Zr2(Ni,Al)+非晶相→体心立方相Zr2(Ni,Al)+体心立方相Zr2(Cu,Al)。
The diameter of 5mm spherical Zr65Al7.5Cu17.5Ni10 bulk amorphous alloy was successfully prepared by direct water quenching. X-ray diffraction and transmission electron microscopy showed that the sample was completely amorphous. The crystallization process of Zr65Al7.5Cu17.5Ni10 amorphous alloy was analyzed by X-ray diffraction and differential scanning calorimetry (DSC). The apparent activation energy of Zr65Al7.5Cu17.5Ni10 amorphous alloy was calculated by Kissinger equation . X-ray diffraction results show that the crystallization of Zr65Al7.5Cu17.5Ni10 amorphous alloy is carried out in the following order: amorphous alloy → body-centered cubic Zr2 (Ni, Al) + amorphous phase → body core The cubic phase Zr2 (Ni, Al) + body - centered cubic Zr2 (Cu, Al).