【摘要】 采用单辊旋淬法制备了Al₈₈Co₄Y₆Er₂铝基非晶合金,运用差示热分析技术研究非晶合金晶化动力学性能。采用Ozawa方法计算了Al₈₈Co₄Y₆Er₂非晶合金晶化激活能,得到初始晶化激活能Ex1是370.6kJ·mol-1。同时发现Al₈₈Co₄Y₆Er₂非晶合金的晶化百分比与温度的关系曲线均呈"S"型曲线,并且随着升温速率的增加,对应的非晶合金"S"型曲线依次向高温移动。此外,在初次晶化过程中晶化激活能（Ea）随晶化体积分数（x%）的增加呈线性递减趋势。更多还原

【Abstract】 Al₈₈Co₄Y₆Er₂amorphous alloys were prepared by melt-spinning method.Kinetics behavior of the Al₈₈Co₄Y₆Er₂ alloy was studied by the differential scanning calorimetry（DSC）.With Ozawa′s methods,average activation energy for crystallization of amorphous Al₈₈Co₄Y₆Er₂ alloy are determined as 370.6kJ·mol-1.The curves of relation of crystallized fraction x with temperature at different heating rates exhibited as a function of"S"shape.A linear relationship was observed,which a value of Ea（x）decreased with crystallized fraction x.更多还原