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采用铜模浇铸法制得直径４．０ｍｍ、长６０ｍｍ圆柱状Ｎｄ６０Ａｌ１５Ｃｕ１０Ｃｏ１０Ｆｅ５大块非晶样品。样品的非晶性经Ｘ射线衍射（ＸＲＤ）实验检验证实。采用示差扫描热分析（ＤＳＣ）、Ｘ射线衍射分析了非晶合金的晶化过程。Ｎｄ６０Ａｌ１５Ｃｕ１０Ｃｏ１０Ｆｅ５非晶态合金的约化玻璃温度Ｔｒｇ＝０．６０，说明合金有较好的非晶形成能力。采用Ｋｉｓｓｉｎｇｅｒ方法求得非晶态合金的表观晶化激活能。根据熔化焓对Ｎｄ６０Ａｌ１５Ｃｕ１０Ｃｏ１０Ｆｅ５合金深过冷液相与稳定晶相间的吉布斯自由能差进行了估算。结果表明，Ｎｄ６０Ａｌ１５Ｃｕ１０Ｃｏ１０Ｆｅ５合金深过冷液相与稳定晶相间的吉布斯自由能差，ΔＧ，在过冷液相区小于２ｋＪ／ｍｏｌ，表明过冷液相的晶化驱动力很小，过冷液相区内的晶相形核具有较大的热垒。
A large-diameter Nd60Al15Cu10Co10Fe5 bulk amorphous sample with a diameter of 4.0 mm and a length of 60 mm was obtained by a copper mold casting method. Amorphous samples were confirmed by X-ray diffraction (XRD) experiments. The crystallization process of amorphous alloy was analyzed by differential scanning calorimetry (DSC) and X-ray diffraction. The reduced glass temperature of Nd60Al15Cu10Co10Fe5 amorphous alloy, Trg = 0.60, indicates that the alloy has better amorphous forming ability. The apparent crystallization activation energy of amorphous alloy was calculated by Kissinger method. The Gibbs free energy difference between the deepcooled liquid phase and the stable crystalline phase of Nd60Al15Cu10Co10Fe5 alloy was estimated based on the enthalpy of fusion. The results show that the Gibbs free energy difference between the deepcooled liquid phase and the stable crystalline phase of Nd60Al15Cu10Co10Fe5 alloy, ΔG, is less than 2 kJ / mol in the supercooled liquid region, indicating that the crystallization driving force of the supercooled liquid phase is very small, Crystal phase nucleation within the liquid region has a larger thermal barrier.